VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog

A. U. Abeysekara; A. Archer; W. Benbow; R. Bird; R. Brose; M. Buchovecky; J. H. Buckley; V. Bugaev; A. J. Chromey; M. P. Connolly; W. Cui; M. K. Daniel; A. Falcone; Q. Feng; J. P. Finley; L. Fortson; A. Furniss; M. Hütten; D. Hanna; O. Hervet; J. Holder; G. Hughes; T. B. Humensky; C. A. Johnson; P. Kaaret; P. Kar; M. Kertzman; D. Kieda; M. Krause; F. Krennrich; S. Kumar; M. J. Lang; T. T.Y. Lin; S. McArthur; P. Moriarty; R. Mukherjee; S. O'Brien; R. A. Ong; A. N. Otte; N. Park; A. Petrashyk; M. Pohl; E. Pueschel; J. Quinn; K. Ragan; P. T. Reynolds; G. T. Richards; E. Roache; C. Rulten; I. Sadeh; M. Santander; G. H. Sembroski; K. Shahinyan; I. Sushch; J. Tyler; S. P. Wakely; A. Weinstein; R. M. Wells; P. Wilcox; A. Wilhelm; D. A. Williams; T. J. Williamson; B. Zitzer; S. Abdollahi; M. Ajello; L. Baldini; G. Barbiellini; D. Bastieri; R. Bellazzini; B. Berenji; E. Bissaldi; R. D. Blandford; R. Bonino; E. Bottacini; T. J. Brandt; P. Bruel; R. Buehler; R. A. Cameron; R. Caputo; P. A. Caraveo; D. Castro; E. Cavazzuti; E. Charles; G. Chiaro; S. Ciprini; J. Cohen-Tanugi; D. Costantin; S. Cutini; F. D'Ammando; F. De Palma; N. Di Lalla; M. Di Mauro; L. Di Venere; A. Dominguez; C. Favuzzi; S. J. Fegan; A. Franckowiak; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Giglietto; F. Giordano; M. Giroletti; D. Green; I. A. Grenier; L. Guillemot; S. Guiriec; E. Hays; J. W. Hewitt; D. Horan; G. Jóhannesson; S. Kensei; M. Kuss; S. Larsson; L. Latronico; M. Lemoine-Goumard; J. Li; F. Longo; F. Loparco; M. N. Lovellette; P. Lubrano; J. D. Magill; S. Maldera; M. N. Mazziotta; J. E. McEnery; P. F. Michelson; W. Mitthumsiri; T. Mizuno; M. E. Monzani; A. Morselli; I. V. Moskalenko; M. Negro; E. Nuss; R. Ojha; N. Omodei; M. Orienti; E. Orlando; M. Palatiello; V. S. Paliya; D. Paneque; J. S. Perkins; M. Persic; M. Pesce-Rollins; V. Petrosian; F. Piron; T. A. Porter; G. Principe; S. Raino; R. Rando; B. Rani; M. Razzano; S. Razzaque; A. Reimer; O. Reimer; T. Reposeur; C. Sgro; E. J. Siskind; G. Spandre; P. Spinelli; D. J. Suson; H. Tajima; J. B. Thayer; D. J. Thompson; D. F. Torres; G. Tosti; E. Troja; J. Valverde; G. Vianello; M. Vogel; K. Wood; M. Yassine; R. Alfaro; C. Alvarez; J. D. Alvarez; R. Arceo; J. C. Arteaga-Velázquez; D. Avila Rojas; H. A.Ayala Solares; A. Becerril; E. Belmont-Moreno; S. Y. Benzvi; A. Bernal; J. Braun; C. Brisbois; K. S. Caballero-Mora; T. Capistrán; A. Carraminana; S. Casanova; M. Castillo; U. Cotti; J. Cotzomi; S. Coutino De León; C. De León; E. De La Fuente; S. Dichiara; B. L. Dingus; M. A. Duvernois; J. C. Diaz-Vélez; K. Engel; O. Enriquez-Rivera; D. W. Fiorino; H. Fleischhack; N. Fraija; J. A. Garcia-González; F. Garfias; A. González Munoz; M. M. González; J. A. Goodman; Z. Hampel-Arias; J. P. Harding; S. Hernandez; A. Hernandez-Almada; B. Hona; F. Hueyotl-Zahuantitla; C. M. Hui; P. Hüntemeyer; A. Iriarte; A. Jardin-Blicq; V. Joshi; S. Kaufmann; A. Lara; R. J. Lauer; W. H. Lee; D. Lennarz; H. León Vargas; J. T. Linnemann; A. L. Longinotti; G. Luis-Raya; R. Luna-Garcia; R. López-Coto; K. Malone; S. S. Marinelli; O. Martinez; I. Martinez-Castellanos; J. Martinez-Castro; H. Martinez-Huerta; J. A. Matthews; P. Miranda-Romagnoli; E. Moreno; M. Mostafá; A. Nayerhoda; L. Nellen; M. Newbold; M. U. Nisa; R. Noriega-Papaqui; R. Pelayo; J. Pretz; E. G. Pérez-Pérez; Z. Ren; C. D. Rho; C. Riviere; D. Rosa-González; M. Rosenberg; E. Ruiz-Velasco; H. Salazar; F. Salesa Greus; A. Sandoval; M. Schneider; M. Seglar Arroyo; G. Sinnis; A. J. Smith; R. W. Springer; P. Surajbali; I. Taboada; O. Tibolla; K. Tollefson; I. Torres; T. N. Ukwatta; L. Villasenor; T. Weisgarber; S. Westerhoff; I. G. Wisher; J. Wood; T. Yapici; G. Yodh; A. Zepeda; H. Zhou

doi:10.3847/1538-4357/aade4e

VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog

A. U. Abeysekara
, A. Archer
, W. Benbow
, R. Bird
, R. Brose
, M. Buchovecky
, J. H. Buckley
, V. Bugaev
, A. J. Chromey
, M. P. Connolly
, W. Cui
, M. K. Daniel
, A. Falcone
, Q. Feng
, J. P. Finley
, L. Fortson
, A. Furniss
, M. Hütten
, D. Hanna
, O. Hervet

J. Holder, G. Hughes, T. B. Humensky, C. A. Johnson, P. Kaaret, P. Kar, M. Kertzman, D. Kieda, M. Krause, F. Krennrich, S. Kumar, M. J. Lang, T. T.Y. Lin, S. McArthur, P. Moriarty, R. Mukherjee, S. O'Brien, R. A. Ong, A. N. Otte, N. Park, A. Petrashyk, M. Pohl, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, C. Rulten, I. Sadeh, M. Santander, G. H. Sembroski, K. Shahinyan, I. Sushch, J. Tyler, S. P. Wakely, A. Weinstein, R. M. Wells, P. Wilcox, A. Wilhelm, D. A. Williams, T. J. Williamson, B. Zitzer, S. Abdollahi, M. Ajello, L. Baldini, G. Barbiellini, D. Bastieri, R. Bellazzini, B. Berenji, E. Bissaldi, R. D. Blandford, R. Bonino, E. Bottacini, T. J. Brandt, P. Bruel, R. Buehler, R. A. Cameron, R. Caputo, P. A. Caraveo, D. Castro, E. Cavazzuti, E. Charles, G. Chiaro, S. Ciprini, J. Cohen-Tanugi, D. Costantin, S. Cutini, F. D'Ammando, F. De Palma, N. Di Lalla, M. Di Mauro, L. Di Venere, A. Dominguez, C. Favuzzi, S. J. Fegan, A. Franckowiak, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, D. Gasparrini, N. Giglietto, F. Giordano, M. Giroletti, D. Green, I. A. Grenier, L. Guillemot, S. Guiriec, E. Hays, J. W. Hewitt, D. Horan, G. Jóhannesson, S. Kensei, M. Kuss, S. Larsson, L. Latronico, M. Lemoine-Goumard, J. Li, F. Longo, F. Loparco, M. N. Lovellette, P. Lubrano, J. D. Magill, S. Maldera, M. N. Mazziotta, J. E. McEnery, P. F. Michelson, W. Mitthumsiri, T. Mizuno, M. E. Monzani, A. Morselli, I. V. Moskalenko, M. Negro, E. Nuss, R. Ojha, N. Omodei, M. Orienti, E. Orlando, M. Palatiello, V. S. Paliya, D. Paneque, J. S. Perkins, M. Persic, M. Pesce-Rollins, V. Petrosian, F. Piron, T. A. Porter, G. Principe, S. Raino, R. Rando, B. Rani, M. Razzano, S. Razzaque, A. Reimer, O. Reimer, T. Reposeur, C. Sgro, E. J. Siskind, G. Spandre, P. Spinelli, D. J. Suson, H. Tajima, J. B. Thayer, D. J. Thompson, D. F. Torres, G. Tosti, E. Troja, J. Valverde, G. Vianello, M. Vogel, K. Wood, M. Yassine, R. Alfaro, C. Alvarez, J. D. Alvarez, R. Arceo, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A.Ayala Solares, A. Becerril, E. Belmont-Moreno, S. Y. Benzvi, A. Bernal, J. Braun, C. Brisbois, K. S. Caballero-Mora, T. Capistrán, A. Carraminana, S. Casanova, M. Castillo, U. Cotti, J. Cotzomi, S. Coutino De León, C. De León, E. De La Fuente, S. Dichiara, B. L. Dingus, M. A. Duvernois, J. C. Diaz-Vélez, K. Engel, O. Enriquez-Rivera, D. W. Fiorino, H. Fleischhack, N. Fraija, J. A. Garcia-González, F. Garfias, A. González Munoz, M. M. González, J. A. Goodman, Z. Hampel-Arias, J. P. Harding, S. Hernandez, A. Hernandez-Almada, B. Hona, F. Hueyotl-Zahuantitla, C. M. Hui, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, S. Kaufmann, A. Lara, R. J. Lauer, W. H. Lee, D. Lennarz, H. León Vargas, J. T. Linnemann, A. L. Longinotti, G. Luis-Raya, R. Luna-Garcia, R. López-Coto, K. Malone, S. S. Marinelli, O. Martinez, I. Martinez-Castellanos, J. Martinez-Castro, H. Martinez-Huerta, J. A. Matthews, P. Miranda-Romagnoli, E. Moreno, M. Mostafá, A. Nayerhoda, L. Nellen, M. Newbold, M. U. Nisa, R. Noriega-Papaqui, R. Pelayo, J. Pretz, E. G. Pérez-Pérez, Z. Ren, C. D. Rho, C. Riviere, D. Rosa-González, M. Rosenberg, E. Ruiz-Velasco, H. Salazar, F. Salesa Greus, A. Sandoval, M. Schneider, M. Seglar Arroyo, G. Sinnis, A. J. Smith, R. W. Springer, P. Surajbali, I. Taboada, O. Tibolla, K. Tollefson, I. Torres, T. N. Ukwatta, L. Villasenor, T. Weisgarber, S. Westerhoff, I. G. Wisher, J. Wood, T. Yapici, G. Yodh, A. Zepeda, H. Zhou

Physics

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Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV-30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.

Original language	English
Article number	24
Journal	Astrophysical Journal
Volume	866
Issue number	1
DOIs	https://doi.org/10.3847/1538-4357/aade4e
Publication status	Published - 10 Oct 2018

Keywords

gamma rays: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.3847/1538-4357/aade4e

Cite this

Abeysekara, A. U., Archer, A., Benbow, W., Bird, R., Brose, R., Buchovecky, M., Buckley, J. H., Bugaev, V., Chromey, A. J., Connolly, M. P., Cui, W., Daniel, M. K., Falcone, A., Feng, Q., Finley, J. P., Fortson, L., Furniss, A., Hütten, M., Hanna, D., ... Zhou, H. (2018). VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog. Astrophysical Journal, 866(1), Article 24. https://doi.org/10.3847/1538-4357/aade4e

@article{014288a8ada043e996583fe7347bfdb0,

title = "VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog",

abstract = "The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV-30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.",

keywords = "gamma rays: general",

author = "Abeysekara, \{A. U.\} and A. Archer and W. Benbow and R. Bird and R. Brose and M. Buchovecky and Buckley, \{J. H.\} and V. Bugaev and Chromey, \{A. J.\} and Connolly, \{M. P.\} and W. Cui and Daniel, \{M. K.\} and A. Falcone and Q. Feng and Finley, \{J. P.\} and L. Fortson and A. Furniss and M. H{\"u}tten and D. Hanna and O. Hervet and J. Holder and G. Hughes and Humensky, \{T. B.\} and Johnson, \{C. A.\} and P. Kaaret and P. Kar and M. Kertzman and D. Kieda and M. Krause and F. Krennrich and S. Kumar and Lang, \{M. J.\} and Lin, \{T. T.Y.\} and S. McArthur and P. Moriarty and R. Mukherjee and S. O'Brien and Ong, \{R. A.\} and Otte, \{A. N.\} and N. Park and A. Petrashyk and M. Pohl and E. Pueschel and J. Quinn and K. Ragan and Reynolds, \{P. T.\} and Richards, \{G. T.\} and E. Roache and C. Rulten and I. Sadeh and M. Santander and Sembroski, \{G. H.\} and K. Shahinyan and I. Sushch and J. Tyler and Wakely, \{S. P.\} and A. Weinstein and Wells, \{R. M.\} and P. Wilcox and A. Wilhelm and Williams, \{D. A.\} and Williamson, \{T. J.\} and B. Zitzer and S. Abdollahi and M. Ajello and L. Baldini and G. Barbiellini and D. Bastieri and R. Bellazzini and B. Berenji and E. Bissaldi and Blandford, \{R. D.\} and R. Bonino and E. Bottacini and Brandt, \{T. J.\} and P. Bruel and R. Buehler and Cameron, \{R. A.\} and R. Caputo and Caraveo, \{P. A.\} and D. Castro and E. Cavazzuti and E. Charles and G. Chiaro and S. Ciprini and J. Cohen-Tanugi and D. Costantin and S. Cutini and F. D'Ammando and Palma, \{F. De\} and Lalla, \{N. Di\} and Mauro, \{M. Di\} and Venere, \{L. Di\} and A. Dominguez and C. Favuzzi and Fegan, \{S. J.\} and A. Franckowiak and Y. Fukazawa and S. Funk and P. Fusco and F. Gargano and D. Gasparrini and N. Giglietto and F. Giordano and M. Giroletti and D. Green and Grenier, \{I. A.\} and L. Guillemot and S. Guiriec and E. Hays and Hewitt, \{J. W.\} and D. Horan and G. J{\'o}hannesson and S. Kensei and M. Kuss and S. Larsson and L. Latronico and M. Lemoine-Goumard and J. Li and F. Longo and F. Loparco and Lovellette, \{M. N.\} and P. Lubrano and Magill, \{J. D.\} and S. Maldera and Mazziotta, \{M. N.\} and McEnery, \{J. E.\} and Michelson, \{P. F.\} and W. Mitthumsiri and T. Mizuno and Monzani, \{M. E.\} and A. Morselli and Moskalenko, \{I. V.\} and M. Negro and E. Nuss and R. Ojha and N. Omodei and M. Orienti and E. Orlando and M. Palatiello and Paliya, \{V. S.\} and D. Paneque and Perkins, \{J. S.\} and M. Persic and M. Pesce-Rollins and V. Petrosian and F. Piron and Porter, \{T. A.\} and G. Principe and S. Raino and R. Rando and B. Rani and M. Razzano and S. Razzaque and A. Reimer and O. Reimer and T. Reposeur and C. Sgro and Siskind, \{E. J.\} and G. Spandre and P. Spinelli and Suson, \{D. J.\} and H. Tajima and Thayer, \{J. B.\} and Thompson, \{D. J.\} and Torres, \{D. F.\} and G. Tosti and E. Troja and J. Valverde and G. Vianello and M. Vogel and K. Wood and M. Yassine and R. Alfaro and C. Alvarez and Alvarez, \{J. D.\} and R. Arceo and Arteaga-Vel{\'a}zquez, \{J. C.\} and Rojas, \{D. Avila\} and Solares, \{H. A.Ayala\} and A. Becerril and E. Belmont-Moreno and Benzvi, \{S. Y.\} and A. Bernal and J. Braun and C. Brisbois and Caballero-Mora, \{K. S.\} and T. Capistr{\'a}n and A. Carraminana and S. Casanova and M. Castillo and U. Cotti and J. Cotzomi and \{De Le{\'o}n\}, \{S. Coutino\} and Le{\'o}n, \{C. De\} and Fuente, \{E. De La\} and S. Dichiara and Dingus, \{B. L.\} and Duvernois, \{M. A.\} and Diaz-V{\'e}lez, \{J. C.\} and K. Engel and O. Enriquez-Rivera and Fiorino, \{D. W.\} and H. Fleischhack and N. Fraija and Garcia-Gonz{\'a}lez, \{J. A.\} and F. Garfias and Munoz, \{A. Gonz{\'a}lez\} and Gonz{\'a}lez, \{M. M.\} and Goodman, \{J. A.\} and Z. Hampel-Arias and Harding, \{J. P.\} and S. Hernandez and A. Hernandez-Almada and B. Hona and F. Hueyotl-Zahuantitla and Hui, \{C. M.\} and P. H{\"u}ntemeyer and A. Iriarte and A. Jardin-Blicq and V. Joshi and S. Kaufmann and A. Lara and Lauer, \{R. J.\} and Lee, \{W. H.\} and D. Lennarz and Vargas, \{H. Le{\'o}n\} and Linnemann, \{J. T.\} and Longinotti, \{A. L.\} and G. Luis-Raya and R. Luna-Garcia and R. L{\'o}pez-Coto and K. Malone and Marinelli, \{S. S.\} and O. Martinez and I. Martinez-Castellanos and J. Martinez-Castro and H. Martinez-Huerta and Matthews, \{J. A.\} and P. Miranda-Romagnoli and E. Moreno and M. Mostaf{\'a} and A. Nayerhoda and L. Nellen and M. Newbold and Nisa, \{M. U.\} and R. Noriega-Papaqui and R. Pelayo and J. Pretz and P{\'e}rez-P{\'e}rez, \{E. G.\} and Z. Ren and Rho, \{C. D.\} and C. Riviere and D. Rosa-Gonz{\'a}lez and M. Rosenberg and E. Ruiz-Velasco and H. Salazar and Greus, \{F. Salesa\} and A. Sandoval and M. Schneider and Arroyo, \{M. Seglar\} and G. Sinnis and Smith, \{A. J.\} and Springer, \{R. W.\} and P. Surajbali and I. Taboada and O. Tibolla and K. Tollefson and I. Torres and Ukwatta, \{T. N.\} and L. Villasenor and T. Weisgarber and S. Westerhoff and Wisher, \{I. G.\} and J. Wood and T. Yapici and G. Yodh and A. Zepeda and H. Zhou",

year = "2018",

month = oct,

day = "10",

doi = "10.3847/1538-4357/aade4e",

language = "English",

volume = "866",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

number = "1",

}

Abeysekara, AU, Archer, A, Benbow, W, Bird, R, Brose, R, Buchovecky, M, Buckley, JH, Bugaev, V, Chromey, AJ, Connolly, MP, Cui, W, Daniel, MK, Falcone, A, Feng, Q, Finley, JP, Fortson, L, Furniss, A, Hütten, M, Hanna, D, Hervet, O, Holder, J, Hughes, G, Humensky, TB, Johnson, CA, Kaaret, P, Kar, P, Kertzman, M, Kieda, D, Krause, M, Krennrich, F, Kumar, S, Lang, MJ, Lin, TTY, McArthur, S, Moriarty, P, Mukherjee, R, O'Brien, S, Ong, RA, Otte, AN, Park, N, Petrashyk, A, Pohl, M, Pueschel, E, Quinn, J, Ragan, K, Reynolds, PT, Richards, GT, Roache, E, Rulten, C, Sadeh, I, Santander, M, Sembroski, GH, Shahinyan, K, Sushch, I, Tyler, J, Wakely, SP, Weinstein, A, Wells, RM, Wilcox, P, Wilhelm, A, Williams, DA, Williamson, TJ, Zitzer, B, Abdollahi, S, Ajello, M, Baldini, L, Barbiellini, G, Bastieri, D, Bellazzini, R, Berenji, B, Bissaldi, E, Blandford, RD, Bonino, R, Bottacini, E, Brandt, TJ, Bruel, P, Buehler, R, Cameron, RA, Caputo, R, Caraveo, PA, Castro, D, Cavazzuti, E, Charles, E, Chiaro, G, Ciprini, S, Cohen-Tanugi, J, Costantin, D, Cutini, S, D'Ammando, F, Palma, FD, Lalla, ND, Mauro, MD, Venere, LD, Dominguez, A, Favuzzi, C, Fegan, SJ, Franckowiak, A, Fukazawa, Y, Funk, S, Fusco, P, Gargano, F, Gasparrini, D, Giglietto, N, Giordano, F, Giroletti, M, Green, D, Grenier, IA, Guillemot, L, Guiriec, S, Hays, E, Hewitt, JW, Horan, D, Jóhannesson, G, Kensei, S, Kuss, M, Larsson, S, Latronico, L, Lemoine-Goumard, M, Li, J, Longo, F, Loparco, F, Lovellette, MN, Lubrano, P, Magill, JD, Maldera, S, Mazziotta, MN, McEnery, JE, Michelson, PF, Mitthumsiri, W, Mizuno, T, Monzani, ME, Morselli, A, Moskalenko, IV, Negro, M, Nuss, E, Ojha, R, Omodei, N, Orienti, M, Orlando, E, Palatiello, M, Paliya, VS, Paneque, D, Perkins, JS, Persic, M, Pesce-Rollins, M, Petrosian, V, Piron, F, Porter, TA, Principe, G, Raino, S, Rando, R, Rani, B, Razzano, M, Razzaque, S, Reimer, A, Reimer, O, Reposeur, T, Sgro, C, Siskind, EJ, Spandre, G, Spinelli, P, Suson, DJ, Tajima, H, Thayer, JB, Thompson, DJ, Torres, DF, Tosti, G, Troja, E, Valverde, J, Vianello, G, Vogel, M, Wood, K, Yassine, M, Alfaro, R, Alvarez, C, Alvarez, JD, Arceo, R, Arteaga-Velázquez, JC, Rojas, DA, Solares, HAA, Becerril, A, Belmont-Moreno, E, Benzvi, SY, Bernal, A, Braun, J, Brisbois, C, Caballero-Mora, KS, Capistrán, T, Carraminana, A, Casanova, S, Castillo, M, Cotti, U, Cotzomi, J, De León, SC, León, CD, Fuente, EDL, Dichiara, S, Dingus, BL, Duvernois, MA, Diaz-Vélez, JC, Engel, K, Enriquez-Rivera, O, Fiorino, DW, Fleischhack, H, Fraija, N, Garcia-González, JA, Garfias, F, Munoz, AG, González, MM, Goodman, JA, Hampel-Arias, Z, Harding, JP, Hernandez, S, Hernandez-Almada, A, Hona, B, Hueyotl-Zahuantitla, F, Hui, CM, Hüntemeyer, P, Iriarte, A, Jardin-Blicq, A, Joshi, V, Kaufmann, S, Lara, A, Lauer, RJ, Lee, WH, Lennarz, D, Vargas, HL, Linnemann, JT, Longinotti, AL, Luis-Raya, G, Luna-Garcia, R, López-Coto, R, Malone, K, Marinelli, SS, Martinez, O, Martinez-Castellanos, I, Martinez-Castro, J, Martinez-Huerta, H, Matthews, JA, Miranda-Romagnoli, P, Moreno, E, Mostafá, M, Nayerhoda, A, Nellen, L, Newbold, M, Nisa, MU, Noriega-Papaqui, R, Pelayo, R, Pretz, J, Pérez-Pérez, EG, Ren, Z, Rho, CD, Riviere, C, Rosa-González, D, Rosenberg, M, Ruiz-Velasco, E, Salazar, H, Greus, FS, Sandoval, A, Schneider, M, Arroyo, MS, Sinnis, G, Smith, AJ, Springer, RW, Surajbali, P, Taboada, I, Tibolla, O, Tollefson, K, Torres, I, Ukwatta, TN, Villasenor, L, Weisgarber, T, Westerhoff, S, Wisher, IG, Wood, J, Yapici, T, Yodh, G, Zepeda, A & Zhou, H 2018, 'VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog', Astrophysical Journal, vol. 866, no. 1, 24. https://doi.org/10.3847/1538-4357/aade4e

TY - JOUR

T1 - VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog

AU - Abeysekara, A. U.

AU - Archer, A.

AU - Benbow, W.

AU - Bird, R.

AU - Brose, R.

AU - Buchovecky, M.

AU - Buckley, J. H.

AU - Bugaev, V.

AU - Chromey, A. J.

AU - Connolly, M. P.

AU - Cui, W.

AU - Daniel, M. K.

AU - Falcone, A.

AU - Feng, Q.

AU - Finley, J. P.

AU - Fortson, L.

AU - Furniss, A.

AU - Hütten, M.

AU - Hanna, D.

AU - Hervet, O.

AU - Holder, J.

AU - Hughes, G.

AU - Humensky, T. B.

AU - Johnson, C. A.

AU - Kaaret, P.

AU - Kar, P.

AU - Kertzman, M.

AU - Kieda, D.

AU - Krause, M.

AU - Krennrich, F.

AU - Kumar, S.

AU - Lang, M. J.

AU - Lin, T. T.Y.

AU - McArthur, S.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - O'Brien, S.

AU - Ong, R. A.

AU - Otte, A. N.

AU - Park, N.

AU - Petrashyk, A.

AU - Pohl, M.

AU - Pueschel, E.

AU - Quinn, J.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Richards, G. T.

AU - Roache, E.

AU - Rulten, C.

AU - Sadeh, I.

AU - Santander, M.

AU - Sembroski, G. H.

AU - Shahinyan, K.

AU - Sushch, I.

AU - Tyler, J.

AU - Wakely, S. P.

AU - Weinstein, A.

AU - Wells, R. M.

AU - Wilcox, P.

AU - Wilhelm, A.

AU - Williams, D. A.

AU - Williamson, T. J.

AU - Zitzer, B.

AU - Abdollahi, S.

AU - Ajello, M.

AU - Baldini, L.

AU - Barbiellini, G.

AU - Bastieri, D.

AU - Bellazzini, R.

AU - Berenji, B.

AU - Bissaldi, E.

AU - Blandford, R. D.

AU - Bonino, R.

AU - Bottacini, E.

AU - Brandt, T. J.

AU - Bruel, P.

AU - Buehler, R.

AU - Cameron, R. A.

AU - Caputo, R.

AU - Caraveo, P. A.

AU - Castro, D.

AU - Cavazzuti, E.

AU - Charles, E.

AU - Chiaro, G.

AU - Ciprini, S.

AU - Cohen-Tanugi, J.

AU - Costantin, D.

AU - Cutini, S.

AU - D'Ammando, F.

AU - Palma, F. De

AU - Lalla, N. Di

AU - Mauro, M. Di

AU - Venere, L. Di

AU - Dominguez, A.

AU - Favuzzi, C.

AU - Fegan, S. J.

AU - Franckowiak, A.

AU - Fukazawa, Y.

AU - Funk, S.

AU - Fusco, P.

AU - Gargano, F.

AU - Gasparrini, D.

AU - Giglietto, N.

AU - Giordano, F.

AU - Giroletti, M.

AU - Green, D.

AU - Grenier, I. A.

AU - Guillemot, L.

AU - Guiriec, S.

AU - Hays, E.

AU - Hewitt, J. W.

AU - Horan, D.

AU - Jóhannesson, G.

AU - Kensei, S.

AU - Kuss, M.

AU - Larsson, S.

AU - Latronico, L.

AU - Lemoine-Goumard, M.

AU - Li, J.

AU - Longo, F.

AU - Loparco, F.

AU - Lovellette, M. N.

AU - Lubrano, P.

AU - Magill, J. D.

AU - Maldera, S.

AU - Mazziotta, M. N.

AU - McEnery, J. E.

AU - Michelson, P. F.

AU - Mitthumsiri, W.

AU - Mizuno, T.

AU - Monzani, M. E.

AU - Morselli, A.

AU - Moskalenko, I. V.

AU - Negro, M.

AU - Nuss, E.

AU - Ojha, R.

AU - Omodei, N.

AU - Orienti, M.

AU - Orlando, E.

AU - Palatiello, M.

AU - Paliya, V. S.

AU - Paneque, D.

AU - Perkins, J. S.

AU - Persic, M.

AU - Pesce-Rollins, M.

AU - Petrosian, V.

AU - Piron, F.

AU - Porter, T. A.

AU - Principe, G.

AU - Raino, S.

AU - Rando, R.

AU - Rani, B.

AU - Razzano, M.

AU - Razzaque, S.

AU - Reimer, A.

AU - Reimer, O.

AU - Reposeur, T.

AU - Sgro, C.

AU - Siskind, E. J.

AU - Spandre, G.

AU - Spinelli, P.

AU - Suson, D. J.

AU - Tajima, H.

AU - Thayer, J. B.

AU - Thompson, D. J.

AU - Torres, D. F.

AU - Tosti, G.

AU - Troja, E.

AU - Valverde, J.

AU - Vianello, G.

AU - Vogel, M.

AU - Wood, K.

AU - Yassine, M.

AU - Alfaro, R.

AU - Alvarez, C.

AU - Alvarez, J. D.

AU - Arceo, R.

AU - Arteaga-Velázquez, J. C.

AU - Rojas, D. Avila

AU - Solares, H. A.Ayala

AU - Becerril, A.

AU - Belmont-Moreno, E.

AU - Benzvi, S. Y.

AU - Bernal, A.

AU - Braun, J.

AU - Brisbois, C.

AU - Caballero-Mora, K. S.

AU - Capistrán, T.

AU - Carraminana, A.

AU - Casanova, S.

AU - Castillo, M.

AU - Cotti, U.

AU - Cotzomi, J.

AU - De León, S. Coutino

AU - León, C. De

AU - Fuente, E. De La

AU - Dichiara, S.

AU - Dingus, B. L.

AU - Duvernois, M. A.

AU - Diaz-Vélez, J. C.

AU - Engel, K.

AU - Enriquez-Rivera, O.

AU - Fiorino, D. W.

AU - Fleischhack, H.

AU - Fraija, N.

AU - Garcia-González, J. A.

AU - Garfias, F.

AU - Munoz, A. González

AU - González, M. M.

AU - Goodman, J. A.

AU - Hampel-Arias, Z.

AU - Harding, J. P.

AU - Hernandez, S.

AU - Hernandez-Almada, A.

AU - Hona, B.

AU - Hueyotl-Zahuantitla, F.

AU - Hui, C. M.

AU - Hüntemeyer, P.

AU - Iriarte, A.

AU - Jardin-Blicq, A.

AU - Joshi, V.

AU - Kaufmann, S.

AU - Lara, A.

AU - Lauer, R. J.

AU - Lee, W. H.

AU - Lennarz, D.

AU - Vargas, H. León

AU - Linnemann, J. T.

AU - Longinotti, A. L.

AU - Luis-Raya, G.

AU - Luna-Garcia, R.

AU - López-Coto, R.

AU - Malone, K.

AU - Marinelli, S. S.

AU - Martinez, O.

AU - Martinez-Castellanos, I.

AU - Martinez-Castro, J.

AU - Martinez-Huerta, H.

AU - Matthews, J. A.

AU - Miranda-Romagnoli, P.

AU - Moreno, E.

AU - Mostafá, M.

AU - Nayerhoda, A.

AU - Nellen, L.

AU - Newbold, M.

AU - Nisa, M. U.

AU - Noriega-Papaqui, R.

AU - Pelayo, R.

AU - Pretz, J.

AU - Pérez-Pérez, E. G.

AU - Ren, Z.

AU - Rho, C. D.

AU - Riviere, C.

AU - Rosa-González, D.

AU - Rosenberg, M.

AU - Ruiz-Velasco, E.

AU - Salazar, H.

AU - Greus, F. Salesa

AU - Sandoval, A.

AU - Schneider, M.

AU - Arroyo, M. Seglar

AU - Sinnis, G.

AU - Smith, A. J.

AU - Springer, R. W.

AU - Surajbali, P.

AU - Taboada, I.

AU - Tibolla, O.

AU - Tollefson, K.

AU - Torres, I.

AU - Ukwatta, T. N.

AU - Villasenor, L.

AU - Weisgarber, T.

AU - Westerhoff, S.

AU - Wisher, I. G.

AU - Wood, J.

AU - Yapici, T.

AU - Yodh, G.

AU - Zepeda, A.

AU - Zhou, H.

PY - 2018/10/10

Y1 - 2018/10/10

N2 - The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV-30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.

AB - The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV-30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.

KW - gamma rays: general

UR - https://www.scopus.com/pages/publications/85055336695

U2 - 10.3847/1538-4357/aade4e

DO - 10.3847/1538-4357/aade4e

M3 - Article

AN - SCOPUS:85055336695

SN - 0004-637X

VL - 866

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 24

ER -

VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog

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