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1. Limits on Diffuse Dark Matter with HAWC

Author

Eduardo Moreno Barbosa, Ramiro Torres Escobedo, Fernando Garfias, Thomas Weisgarber, Laura Olivera-Nieto, Nicola Omodei, Ian Herzog, Diego Garcia Aguilar, Juan de Dios Álvarez Romero, Arturo Iriarte, Segev BenZvi, Luis Villaseñor, Jorge Luis Flores, Ibrahim Torres, Hugo Alberto Ayala Solares, William H. Lee, James Ryan, Samridha Kunwar, Israel Martinez Castellanos, Wayne Robert Springer, Hannah Jhee, Julie McEnery, Chang Dong Rho, Roberto Noriega-Papaqui, Arnulfo Zepeda, Hazal Goksu, Jorge Cotzomi, Nissim Illich Fraija, Josefa Becerra Gonzalez, Ignacio Taboada, Brian Fick, Oscar Chaparro-Amaro, Mora Durocher, J. A. Goodman, Eucario Gonzalo Pérez Pérez, Lorenzo Diaz, Ernesto Belmont-Moreno, Ruben Lopez-Coto, Ruben Alfaro, Yunior Pérez Araujo, Anna Lia Longinotti, Jim Hinton, Sergio Hernández Cadena, Jason Fan, Petra Hüntemeyer, Jason Lee, Daniel Rosa-Gonzalez, Elijah Willox, Rishi Babu, Humberto Ibarguen Salazar, Kelly Malone, Mateo Fernandez Alonso, Mehr Nisa, Ian James Watson, Gerd J. Kunde, Maria Magdalena González, Hermes Leon Vargas, David Kieda, Eduardo de la Fuente, Michael Schneider, Filiberto Hueyotl-Zahuantitla, Amid Nayerhoda, Vincent Marandon, Alberto Carramiñana, John Matthews, Lukas Nellen, Jose Luis García-Luna, Miguel Mostafa, Karen S. Caballero Mora, Felix Werner, Hao Zhou, Cederik León de León, Robert Ellsworth, Raquel Diaz Hernandez, Vardan Baghmanyan, Guillermo García-Torales, Arun Babu Kollamparambil, Binita Hona, Umberto Cotti, Sabrina Casanova, Oscar Martinez, Brian Humensky, Francisco Salesa Greus, Ke Fang, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Joshua Wood, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Alison Peisker, Anushka Udara Abeysekara, Andrew James Smith, Fernando Ureña-Mena, Gaurang Yodh, Henrike Fleischhack, Kristi Engel, Andrea Albert, Jose Andres Garcia-Gonzalez, Juan Carlos Arteaga Velazquez, Ahron S. Barber, Meghan Tanner, Colas Rivière, Jesús Martínez-Castro, Juan Carlos Díaz Vélez, Armelle Jardin-Blicq, Rhiannon Turner, Chad Brisbois, José Roberto Angeles Camacho, César Alvarez, Sara Coutiño de Leon, Vikas Joshi, Alejandro Lara, Gilgamesh Luis-Raya, Michael DuVernois, Kirsten Tollefson, Harm Schoorlemmer, David Berley, Michael Newbold, Hawc, Pedro Miranda-Romagnoli, Xiaojie Wang, Joe Lundeen, Michelle Hui, J. Patrick Harding, Humberto Martínez Huerta, Edna Ruiz-Velasco, Dirk Lennarz, Gwenael Giacinti, José Serna-Franco, J. T. Linnemann, Brenda Dingus, Daniel Omar Avila Rojas, and Dezhi Huang

Subjects
Physics, Dark matter, Astrophysics
Published
2021

2. Limits on the Diffuse Gamma-Ray Background with HAWC

Author

Ernesto Belmont-Moreno, Juan Carlos Arteaga Velazquez, Gerd J. Kunde, Jim Hinton, Sergio Hernández Cadena, Meghan Tanner, Colas Rivière, Eduardo Moreno Barbosa, Dirk Lennarz, José Serna-Franco, Elijah Willox, Harm Schoorlemmer, Samridha Kunwar, Jesús Martínez-Castro, Israel Martinez Castellanos, Segev BenZvi, J. T. Linnemann, Dezhi Huang, Vikas Joshi, Hannah Jhee, Ruben Lopez-Coto, Juan Carlos Díaz Vélez, Hawc, Eucario Gonzalo Pérez Pérez, David Berley, Armelle Jardin-Blicq, Yunior Pérez Araujo, Anna Lia Longinotti, Gilgamesh Luis-Raya, Xiaojie Wang, Guillermo García-Torales, Joe Lundeen, Diego Garcia Aguilar, Kirsten Tollefson, Rhiannon Turner, Nissim Illich Fraija, Chad Brisbois, Arun Babu Kollamparambil, Brenda Dingus, Pedro Miranda-Romagnoli, Ke Fang, Daniel Omar Avila Rojas, Jorge Luis Flores, Ibrahim Torres, Juan de Dios Álvarez Romero, Alejandro Lara, Ahron S. Barber, Fernando Garfias, José Roberto Angeles Camacho, Michael Schneider, Felix Werner, Ian Herzog, William H. Lee, Jason Fan, Julie McEnery, Miguel Mostafa, Rishi Babu, Kelly Malone, Josefa Becerra Gonzalez, Michael DuVernois, Ignacio Taboada, Cederik León de León, Gwenael Giacinti, Chang Dong Rho, Michael Newbold, Thomas Weisgarber, Laura Olivera-Nieto, Michelle Hui, Vincent Marandon, Alberto Carramiñana, J. A. Goodman, Ruben Alfaro, Humberto Ibarguen Salazar, Robert Ellsworth, Raquel Diaz Hernandez, Vardan Baghmanyan, Alison Peisker, Andrew James Smith, César Alvarez, Mehr Nisa, Ian James Watson, Jason Lee, Arnulfo Zepeda, Hazal Goksu, Daniel Rosa-Gonzalez, Henrike Fleischhack, Umberto Cotti, Brian Fick, Lorenzo Diaz, David Kieda, Francisco Salesa Greus, Sabrina Casanova, Maria Magdalena González, Joshua Wood, Eduardo de la Fuente, Kristi Engel, Jorge Cotzomi, Filiberto Hueyotl-Zahuantitla, Hermes Leon Vargas, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, John Matthews, Anushka Udara Abeysekara, Hugo Alberto Ayala Solares, Oscar Martinez, Jose Luis García-Luna, Roberto Noriega-Papaqui, Oscar Chaparro-Amaro, James Ryan, Wayne Robert Springer, Amid Nayerhoda, Brian Humensky, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Fernando Ureña-Mena, Gaurang Yodh, Mora Durocher, Petra Hüntemeyer, Binita Hona, Mateo Fernandez Alonso, Karen S. Caballero Mora, Luis Villaseñor, Jose Andres Garcia-Gonzalez, Sara Coutiño de Leon, Edna Ruiz-Velasco, J. Patrick Harding, Ramiro Torres Escobedo, Humberto Martínez Huerta, Nicola Omodei, Arturo Iriarte, Lukas Nellen, Hao Zhou, and Andrea Albert

Subjects
Physics, Gamma ray, Astrophysics
Published
2021

3. CONSTRAINTS ON THE VERY HIGH ENERGY GAMMA-RAY EMISSION WITH HAWC

Author

Yunior Frainen Pérez, Maria Magdalena González, Nissim Illich Fraija, Anushka Udara Abeysekara, Andrea Albert, Ruben Alfaro, César Alvarez, Juan de Dios Álvarez Romero, José Roberto Angeles Camacho, Juan Carlos Arteaga Velazquez, Arun Babu Kollamparambil, Daniel Omar Avila Rojas, Hugo Alberto Ayala Solares, Rishi Babu, Vardan Baghmanyan, Ahron S. Barber, Josefa Becerra González, Ernesto Belmont-Moreno, Segev BenZvi, David Berley, Chad Brisbois, Karen S. Caballero Mora, Tomás Capistrán Rojas, Alberto Carramiñana, Sabrina Casanova, Oscar Chaparro-Amaro, Umberto Cotti, Jorge Cotzomi, Sara Coutiño de León, Eduardo de la Fuente, Cederik León de León, Lorenzo Diaz, Raquel Diaz Hernandez, Juan Carlos Díaz Vélez, Brenda Dingus, Mora Durocher, Michael DuVernois, Robert Ellsworth, Kristi Engel, María Catalina Espinoza Hernández, Jason Fan, Ke Fang, Mateo Fernandez Alonso, Brian Fick, Henrike Fleischhack, Jorge Luis Flores, Diego Garcia Aguilar, Jose Andres Garcia-Gonzalez, Jose Luis García-Luna, Guillermo García-Torales, Fernando Garfias, Gwenael Giacinti, Hazal Goksu, Jordan A. Goodman, J. Patrick Harding, Sergio Hernández Cadena, Ian Herzog, Jim Hinton, Binita Hona, Dezhi Huang, Filiberto Hueyotl-Zahuantitla, Michelle Hui, Brian Humensky, Petra Hüntemeyer, Arturo Iriarte, Armelle Jardin-Blicq, Hannah Jhee, Vikas Joshi, David Kieda, Gerd J. Kunde, Samridha Kunwar, Alejandro Lara, Jason LEE, William H. Lee, Dirk Lennarz, Hermes Leon Vargas, Jim Linnemann, Anna Lia Longinotti, Rubén López-Coto, Gilgamesh Luis-Raya, Joe Lundeen, Kelly Malone, Vincent Marandon, Oscar M Martinez, Israel Martinez Castellanos, Humberto Martínez Huerta, Jesús Martínez-Castro, John Matthews, Julie McEnery, Pedro Miranda-Romagnoli, Jorge Antonio Morales Soto, Eduardo Moreno Barbosa, Miguel Mostafa, Amid Nayerhoda, Lukas Nellen, Michael Newbold, Mehr Un Nisa, Roberto Noriega-Papaqui, Laura Olivera-Nieto, Nicola Omodei, Alison Peisker, Eucario Gonzalo Pérez Pérez, Chang Dong Rho, Colas Rivière, Daniel Rosa-Gonzalez, Edna Ruiz-Velasco, James Ryan, Humberto Ibarguen Salazar, Francisco Salesa Greus, Andrés Sandoval, Michael Schneider, Harm Schoorlemmer, José Serna-Franco, Gus Sinnis, Andrew James Smith, Wayne Robert Springer, Pooja Surajbali, Ignacio Taboada, Meghan Tanner, Kirsten Tollefson, Ibrahim Torres, Ramiro Torres Escobedo, Rhiannon M. Turner, Fernando Josue Urena Mena, Luis Villaseñor, Xiaojie Wang, Ian James Watson, Thomas Weisgarber, Felix Werner, Elijah Job Willox, Joshua Wood, Gaurang Yodh, Arnulfo Zepeda, and Hao Zhou

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, High energy, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Phase (waves), FOS: Physical sciences, Context (language use), Astrophysics, Parameter space, Light curve, Synchrotron, law.invention, Afterglow, law, Astrophysics - High Energy Astrophysical Phenomena
Abstract

Gamma-ray bursts (GRBs) are among the most luminous sources in the universe. The nature of their emission at TeV energies is one of the most relevant open issues related to these events. The temporal and spectral features inferred from the early and late emissions usually known as prompt and afterglow, respectively, can be interpreted within the context of the fireball model. The synchrotron self-Compton process is expected during the afterglow phase. We explain how the theoretical SSC light curves can be compared with hypothetical upper limit located at z=0.3. We show the allowed parameter space of the microphysical parameters and density of the circumburst medium. The most restrictive results are obtained when the SSC process lies in the fast cooling regime, Comment: Presented at the 37th International Cosmic Ray Conference(ICRC2021),Berlin, Germany-online

Published
2021

4. Monitoring the radio galaxy M87 with HAWC

Author

Tomás Capistrán, Daniel Omar Avila Rojas, Maria Magdalena González, Nissim Illich Fraija, Ruben Alfaro, Anushka Udara Abeysekara, Andrea Albert, César Alvarez, Juan de Dios Álvarez Romero, José Roberto Angeles Camacho, Juan Carlos Arteaga Velazquez, Arun Babu Kollamparambil, Hugo Alberto Ayala Solares, Rishi Babu, Vardan Baghmanyan, Ahron S. Barber, Josefa Becerra Gonzalez, Ernesto Belmont-Moreno, Segev BenZvi, David Berley, Chad Brisbois, Karen S. Caballero Mora, Alberto Carramiñana, Sabrina Casanova, Oscar Chaparro-Amaro, Umberto Cotti, Jorge Cotzomi, Sara Coutiño de León, Eduardo de la Fuente, Cederik León de León, Lorenzo Diaz, Raquel Diaz Hernandez, Juan Carlos Díaz Vélez, Brenda Dingus, Mora Durocher, Michael DuVernois, Robert Ellsworth, Kristi Engel, María Catalina Espinoza Hernández, Jason Fan, Ke Fang, Mateo Fernandez Alonso, Brian Fick, Henrike Fleischhack, Jorge Luis Flores, Diego Garcia Aguilar, Jose Andres Garcia-Gonzalez, Jose Luis García-Luna, Guillermo García-Torales, Fernando Garfias, Gwenael Giacinti, Hazal Goksu, Jordan A. Goodman, J. Patrick Harding, Sergio Hernández Cadena, Ian Herzog, Jim Hinton, Binita Hona, Dezhi Huang, Filiberto Hueyotl-Zahuantitla, Michelle Hui, Brian Humensky, Petra Hüntemeyer, Arturo Iriarte, Armelle Jardin-Blicq, Hannah Jhee, Vikas Joshi, David Kieda, Gerd J. Kunde, Samridha Kunwar, Alejandro Lara, Jason LEE, William H. Lee, Dirk Lennarz, Hermes Leon Vargas, Jim Linnemann, Anna Lia Longinotti, Ruben Lopez-Coto, Gilgamesh Luis-Raya, Joe Lundeen, Kelly Malone, Vincent Marandon, Oscar M Martinez, Israel Martinez Castellanos, Humberto Martínez Huerta, Jesús Martínez-Castro, John Matthews, Julie McEnery, Pedro Miranda-Romagnoli, Jorge Antonio Morales Soto, Eduardo Moreno Barbosa, Miguel Mostafa, Amid Nayerhoda, Lukas Nellen, Michael Newbold, Mehr Un Nisa, Roberto Noriega-Papaqui, Laura Olivera-Nieto, Nicola Omodei, Alison Peisker, Yunior Pérez Araujo, Eucario Gonzalo Pérez Pérez, Chang Dong Rho, Colas Rivière, Daniel Rosa-Gonzalez, Edna Ruiz-Velasco, James Ryan, Humberto Ibarguen Salazar, Francisco Salesa Greus, Andrés Sandoval, Michael Schneider, Harm Schoorlemmer, José Serna-Franco, Gus Sinnis, Andrew James Smith, Wayne Robert Springer, Pooja Surajbali, Ignacio Taboada, Meghan Tanner, Kirsten Tollefson, Ibrahim Torres, Ramiro Torres Escobedo, Rhiannon M. Turner, Fernando Josue Urena Mena, Luis Villaseñor, Xiaojie Wang, Ian James Watson, Thomas Weisgarber, Felix Werner, Elijah Job Willox, Joshua Wood, Gaurang Yodh, Arnulfo Zepeda, and Hao Zhou

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Radio galaxy, Low activity, Radiative transfer, Northern Hemisphere, FOS: Physical sciences, Astronomy, Field of view, MAGIC (telescope), Astrophysics - High Energy Astrophysical Phenomena
Abstract

Studies of radio galaxies at TeV energies are fascinating because their jets are misaligned concerning our sightline. Thus, it provides us with a unique opportunity to study the structure of their jets, the radiative processes, and the acceleration mechanisms involved in them. In addition, some radio galaxies have presented variability in their emission, like the giant radio galaxy M87, which has reported several activity periods. Due to its duty cycle >95% and instantaneous field of view of 2 sr, HAWC provides daily monitoring of variable sources visible from the Northern Hemisphere. In this work, we show the results of monitoring M87 between January 2015 and December 2018. HAWC's observations are consistent with the low activity state reported by other instruments (like H.E.S.S and MAGIC). However, after September 2017 (~MJD 58000), the HAWC measurements of M87 show hints of higher activity., Presented at the 37th International Cosmic Ray Conference (ICRC2021), Berlin, Germany - Online

Published
2021

5. Convolutional Neural Networks for Low Energy Gamma-Ray Air Shower Identification with HAWC

Author

Gwenael Giacinti, Dezhi Huang, José Serna-Franco, J. T. Linnemann, Vikas Joshi, Hawc, Brenda Dingus, Karen S. Caballero Mora, Rishi Babu, Gerd J. Kunde, Kelly Malone, Daniel Omar Avila Rojas, Juan de Dios Álvarez Romero, Dirk Lennarz, Vincent Marandon, Alberto Carramiñana, Eduardo Moreno Barbosa, William H. Lee, Raquel Diaz Hernandez, Vardan Baghmanyan, Joe Lundeen, Michael Schneider, Julie McEnery, Felix Werner, Ramiro Torres Escobedo, Jesús Martínez-Castro, Chang Dong Rho, Gilgamesh Luis-Raya, Kirsten Tollefson, Harm Schoorlemmer, Brian Humensky, Ke Fang, David Kieda, Hugo Alberto Ayala Solares, Roberto Noriega-Papaqui, Nicola Omodei, Arturo Iriarte, Segev BenZvi, Humberto Ibarguen Salazar, Ahron S. Barber, Arnulfo Zepeda, Josefa Becerra Gonzalez, David Berley, Brian Fick, Mehr Nisa, Diego Garcia Aguilar, Ian James Watson, J. A. Goodman, Robert Ellsworth, Lorenzo Diaz, Xiaojie Wang, Oscar Chaparro-Amaro, Ernesto Belmont-Moreno, Andrea Albert, Alison Peisker, Andrew James Smith, Hannah Jhee, Umberto Cotti, Binita Hona, Jim Hinton, Sergio Hernández Cadena, John Matthews, Sabrina Casanova, Miguel Mostafa, Pedro Miranda-Romagnoli, Laura Olivera-Nieto, Edna Ruiz-Velasco, Fernando Garfias, Juan Carlos Arteaga Velazquez, Jorge Luis Flores, Ibrahim Torres, Cederik León de León, Henrike Fleischhack, Meghan Tanner, Thomas Weisgarber, Jose Andres Garcia-Gonzalez, Oscar Martinez, César Alvarez, Jorge Cotzomi, Hermes Leon Vargas, Elijah Willox, Colas Rivière, Nissim Illich Fraija, Alejandro Lara, Luis Villaseñor, Ruben Lopez-Coto, Michael Newbold, Hazal Goksu, James Ryan, Yunior Pérez Araujo, Anna Lia Longinotti, Eucario Gonzalo Pérez Pérez, Michael DuVernois, Francisco Salesa Greus, Joshua Wood, Jose Luis García-Luna, Jason Fan, Rhiannon Turner, Chad Brisbois, Lukas Nellen, Sara Coutiño de Leon, Guillermo García-Torales, Arun Babu Kollamparambil, Kristi Engel, Pooja Surajbali, Andrés Sandoval, Hao Zhou, Gus Sinnis, Michelle Hui, Fernando Ureña-Mena, Gaurang Yodh, José Roberto Angeles Camacho, Samridha Kunwar, Mora Durocher, Petra Hüntemeyer, Israel Martinez Castellanos, Maria Magdalena González, Ignacio Taboada, Mateo Fernandez Alonso, Ruben Alfaro, Jason Lee, Daniel Rosa-Gonzalez, Eduardo de la Fuente, Filiberto Hueyotl-Zahuantitla, Juan Carlos Díaz Vélez, J. Patrick Harding, Armelle Jardin-Blicq, Ian Herzog, Humberto Martínez Huerta, Wayne Robert Springer, Ian Watson, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Anushka Udara Abeysekara, and Amid Nayerhoda

Subjects
Physics, Identification (information), Air shower, Low energy, business.industry, Gamma ray, Pattern recognition, Artificial intelligence, business, Convolutional neural network
Published
2021

6. HAWC results on TeV emitting blazars

Author

Luis Villaseñor, Alejandro Lara, Brian Humensky, Tomás Capistrán Rojas, Edna Ruiz-Velasco, John Matthews, Gerd J. Kunde, Hannah Jhee, José Serna-Franco, Jose Andres Garcia-Gonzalez, Maria Magdalena González, Karen S. Caballero Mora, Michael DuVernois, Jesús Martínez-Castro, Nissim Illich Fraija, Fernando Garfias, Rishi Babu, Kelly Malone, Ruben Lopez-Coto, Vincent Marandon, Alberto Carramiñana, Thomas Weisgarber, Ke Fang, Alison Peisker, Oscar Martinez, J. T. Linnemann, Yunior Pérez Araujo, Anna Lia Longinotti, Michael Schneider, Felix Werner, Raquel Diaz Hernandez, Vardan Baghmanyan, Andrew James Smith, Jason Fan, Eduardo de la Fuente, Andrea Albert, Filiberto Hueyotl-Zahuantitla, Binita Hona, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, J. Patrick Harding, Humberto Martínez Huerta, Michelle Hui, Henrike Fleischhack, Hermes Leon Vargas, Fernando Ureña-Mena, Juan Carlos Arteaga Velazquez, Miguel Mostafa, Meghan Tanner, Gaurang Yodh, Ignacio Taboada, Colas Rivière, Cederik León de León, James Ryan, Lukas Nellen, Juan Carlos Díaz Vélez, Juan de Dios Álvarez Romero, Sara Coutiño de Leon, Eduardo Moreno Barbosa, Mora Durocher, Ahron S. Barber, César Alvarez, Arnulfo Zepeda, Brian Fick, Ruben Alfaro, Petra Hüntemeyer, Vikas Joshi, Hao Zhou, Hugo Alberto Ayala Solares, Lorenzo Diaz, Eucario Gonzalo Pérez Pérez, David Kieda, Samridha Kunwar, Armelle Jardin-Blicq, Brenda Dingus, Mateo Fernandez Alonso, Roberto Noriega-Papaqui, Jason Lee, Israel Martinez Castellanos, Dirk Lennarz, Daniel Omar Avila Rojas, Jorge Cotzomi, William H. Lee, Laura Olivera-Nieto, Pedro Miranda-Romagnoli, María Catalina Espinoza Hernández, Julie McEnery, Ramiro Torres Escobedo, Segev BenZvi, Daniel Rosa-Gonzalez, Gilgamesh Luis-Raya, Jorge Antonio Morales Soto, Nicola Omodei, Guillermo García-Torales, Arun Babu Kollamparambil, Chang Dong Rho, Kirsten Tollefson, Oscar Chaparro-Amaro, Arturo Iriarte, Ian Herzog, Anushka Udara Abeysekara, Francisco Salesa Greus, Joshua Wood, Hawc, Gwenael Giacinti, Michael Newbold, Humberto Ibarguen Salazar, Joe Lundeen, Alberto Carramiñana Alonso, Jose Luis García-Luna, Robert Ellsworth, Rhiannon Turner, Harm Schoorlemmer, Chad Brisbois, Umberto Cotti, Mehr Nisa, Sabrina Casanova, José Roberto Angeles Camacho, Ian James Watson, Kristi Engel, David Berley, Xiaojie Wang, Hazal Goksu, Diego Garcia Aguilar, Jorge Luis Flores, Ibrahim Torres, Dezhi Huang, Josefa Becerra Gonzalez, J. A. Goodman, Ernesto Belmont-Moreno, Jim Hinton, Sergio Hernández Cadena, Elijah Willox, Wayne Robert Springer, and Amid Nayerhoda

Subjects
Astrophysics, Blazar
Published
2021

7. Studying High-Mass Microquasars with HAWC

Author

Eduardo Moreno Barbosa, Fernando Garfias, Thomas Weisgarber, Juan Carlos Díaz Vélez, Mora Durocher, Petra Hüntemeyer, Mateo Fernandez Alonso, Se Yeon Hwang, Brian Humensky, Armelle Jardin-Blicq, Hazal Goksu, Jesús Martínez-Castro, Dirk Lennarz, Francisco Salesa Greus, Andrea Albert, Joshua Wood, Jose Andres Garcia-Gonzalez, Juan Carlos Arteaga Velazquez, Meghan Tanner, Colas Rivière, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Fernando Ureña-Mena, Gaurang Yodh, J. Patrick Harding, Rhiannon Turner, Maria Magdalena González, Arnulfo Zepeda, Brian Fick, Sara Coutiño de Leon, Brenda Dingus, Daniel Omar Avila Rojas, Humberto Martínez Huerta, Chad Brisbois, Lorenzo Diaz, José Roberto Angeles Camacho, Kristi Engel, Karen S. Caballero Mora, Hannah Jhee, Gwenael Giacinti, Vikas Joshi, Eduardo de la Fuente, Edna Ruiz-Velasco, Eucario Gonzalo Pérez Pérez, Filiberto Hueyotl-Zahuantitla, Michael Schneider, Felix Werner, José Serna-Franco, Hugo Alberto Ayala Solares, Ke Fang, Wayne Robert Springer, Roberto Noriega-Papaqui, Nissim Illich Fraija, Gilgamesh Luis-Raya, Samridha Kunwar, Guillermo García-Torales, Arun Babu Kollamparambil, Diego Garcia Aguilar, Israel Martinez Castellanos, J. T. Linnemann, Kirsten Tollefson, Youngwan Son, Ignacio Taboada, Ruben Alfaro, Luis Villaseñor, Jorge Luis Flores, Ibrahim Torres, Alejandro Lara, Jorge Cotzomi, Ian Herzog, Amid Nayerhoda, Oscar Chaparro-Amaro, Jason Lee, Laura Olivera-Nieto, Michael Newbold, Ahron S. Barber, Daniel Rosa-Gonzalez, Jose Luis García-Luna, Michael DuVernois, Jason Fan, Hermes Leon Vargas, Robert Ellsworth, Michelle Hui, Umberto Cotti, Harm Schoorlemmer, Sabrina Casanova, Alison Peisker, Andrew James Smith, Rishi Babu, Kelly Malone, John Matthews, Henrike Fleischhack, David Berley, Xiaojie Wang, Oscar Martinez, Ruben Lopez-Coto, Vincent Marandon, Alberto Carramiñana, David Kieda, Yunior Pérez Araujo, Anna Lia Longinotti, Raquel Diaz Hernandez, Vardan Baghmanyan, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Humberto Ibarguen Salazar, Mehr Nisa, Ian James Watson, Dezhi Huang, Ernesto Belmont-Moreno, Jim Hinton, Sergio Hernández Cadena, Elijah Willox, Josefa Becerra Gonzalez, J. A. Goodman, James Ryan, Pedro Miranda-Romagnoli, Binita Hona, Lukas Nellen, Hao Zhou, Ramiro Torres Escobedo, Nicola Omodei, Arturo Iriarte, César Alvarez, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Hawc, Anushka Udara Abeysekara, Joe Lundeen, Miguel Mostafa, Cederik León de León, Segev BenZvi, and Gerd J. Kunde

Subjects
Physics, High mass, Astrophysics
Published
2021

8. Modeling the non-flaring VHE emission from M87 as detected by the HAWC gamma ray observatory

Author

Dirk Lennarz, Segev BenZvi, Ian Herzog, Sara Coutiño de Leon, Francisco Salesa Greus, Joshua Wood, Andrea Albert, Hazal Goksu, Fernando Garfias, Eucario Gonzalo Pérez Pérez, Samridha Kunwar, Brian Humensky, Ramiro Torres Escobedo, Thomas Weisgarber, Israel Martinez Castellanos, Ke Fang, Arnulfo Zepeda, Nicola Omodei, Hannah Jhee, Tomás Capistrán Rojas, James Ryan, Kristi Engel, Humberto Ibarguen Salazar, Brian Fick, Lorenzo Diaz, Arturo Iriarte, Guillermo García-Torales, Arun Babu Kollamparambil, Gerd J. Kunde, Hugo Alberto Ayala Solares, Roberto Noriega-Papaqui, Josefa Becerra Gonzalez, Mehr Nisa, Laura Olivera-Nieto, Ian James Watson, Pooja Surajbali, Andrés Sandoval, Robert Ellsworth, Nissim Illich Fraija, Maria Magdalena González, Juan Carlos Arteaga Velazquez, Oscar Chaparro-Amaro, J. A. Goodman, Eduardo de la Fuente, Filiberto Hueyotl-Zahuantitla, Gus Sinnis, J. Patrick Harding, Humberto Martínez Huerta, Umberto Cotti, Jason Fan, Eduardo Moreno Barbosa, Ernesto Belmont-Moreno, Meghan Tanner, Jim Hinton, Alison Peisker, Andrew James Smith, Sabrina Casanova, Brenda Dingus, Fernando Ureña-Mena, Sergio Hernández Cadena, Colas Rivière, Ignacio Taboada, Henrike Fleischhack, Daniel Omar Avila Rojas, Jorge Cotzomi, Ruben Alfaro, Gaurang Yodh, Elijah Willox, David Kieda, Juan de Dios Álvarez Romero, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, William H. Lee, Anushka Udara Abeysekara, Julie McEnery, Ahron S. Barber, Karen S. Caballero Mora, Jason Lee, Diego Garcia Aguilar, Lukas Nellen, Rishi Babu, Kelly Malone, Hao Zhou, Jorge Luis Flores, Ibrahim Torres, Daniel Rosa-Gonzalez, Vincent Marandon, Alberto Carramiñana, Pedro Miranda-Romagnoli, Gwenael Giacinti, Jesús Martínez-Castro, Jose Luis García-Luna, Chang Dong Rho, Mora Durocher, Petra Hüntemeyer, Raquel Diaz Hernandez, Vardan Baghmanyan, Binita Hona, José Serna-Franco, Hermes Leon Vargas, Luis Villaseñor, Mateo Fernandez Alonso, Ruben Lopez-Coto, Michael Schneider, Fernando Ureña Mena, Felix Werner, Yunior Pérez Araujo, Anna Lia Longinotti, Edna Ruiz-Velasco, John Matthews, Miguel Mostafa, Cederik León de León, Jose Andres Garcia-Gonzalez, J. T. Linnemann, Oscar Martinez, Wayne Robert Springer, Amid Nayerhoda, Rhiannon Turner, Chad Brisbois, José Roberto Angeles Camacho, Juan Carlos Díaz Vélez, Armelle Jardin-Blicq, Harm Schoorlemmer, David Berley, Xiaojie Wang, Alejandro Lara, Michael DuVernois, Hawc, Vikas Joshi, Joe Lundeen, Gilgamesh Luis-Raya, Kirsten Tollefson, César Alvarez, Michael Newbold, Michelle Hui, and Dezhi Huang

Subjects
Physics, Radio galaxy, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Broadband, Gamma ray, Spectral energy distribution, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Blazar, Virgo Cluster, Astrophysics::Galaxy Astrophysics, Cherenkov radiation
Abstract

M87 is a giant radio galaxy located in the Virgo Cluster, known to be a very high energy (VHE) gamma-ray source. As radio galaxies are considered the misaligned low-redshift counterparts of blazars, they are excellent laboratories for testing AGN emission models. M87 has been detected and monitored by Fermi-LAT and several atmospheric Cherenkov telescopes. Recently, the HAWC Collaboration presented marginal evidence of 4.5 year TeV gamma-ray emission from this object. The HAWC data has the potential to constrain the average VHE emission of sources of complex behavior, like M87, for which the physical origin of the VHE gamma-ray emission is still uncertain. We fitted a lepto-hadronic scenario to the broadband spectral energy distribution of M87 to model its non-flaring VHE emission using HAWC data.

Published
2021

9. Study of the eHWC J1825-134 at the Highest Energy with HWAC

Author

James Ryan, Mora Durocher, Petra Hüntemeyer, Mateo Fernandez Alonso, Hannah Jhee, Dirk Lennarz, Maria Magdalena González, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Michael Newbold, Tomás Capistrán, Hazal Goksu, Anushka Udara Abeysekara, Alejandro Lara, Nissim Illich Fraija, Laura Olivera-Nieto, J. Patrick Harding, Brian Humensky, Eduardo de la Fuente, Miguel Mostafa, Ahron S. Barber, Humberto Martínez Huerta, Ignacio Taboada, Hawc, Michael DuVernois, Filiberto Hueyotl-Zahuantitla, Cederik León de León, Fernando Garfias, Hermes Leon Vargas, Pedro Miranda-Romagnoli, Ruben Alfaro, Andrea Albert, Jason Fan, Jose Andres Garcia-Gonzalez, Joe Lundeen, Thomas Weisgarber, Ian Herzog, Jason Lee, Vikas Joshi, Alison Peisker, Harm Schoorlemmer, Andrew James Smith, Juan Carlos Arteaga Velazquez, Daniel Rosa-Gonzalez, Jorge Cotzomi, Henrike Fleischhack, Meghan Tanner, Josefa Becerra Gonzalez, Francisco Salesa Greus, Colas Rivière, Lukas Nellen, Pooja Surajbali, Andrés Sandoval, Segev BenZvi, Michelle Hui, Gus Sinnis, Joshua Wood, Fernando Ureña-Mena, David Berley, Eucario Gonzalo Pérez Pérez, Gaurang Yodh, J. A. Goodman, Hao Zhou, Gilgamesh Luis-Raya, Dezhi Huang, Xiaojie Wang, Guillermo García-Torales, Kristi Engel, David Kieda, Hugo Alberto Ayala Solares, Rishi Babu, César Alvarez, Arun Babu Kollamparambil, Kelly Malone, Gwenael Giacinti, Luis Villaseñor, Binita Hona, Roberto Noriega-Papaqui, Michael Schneider, Kirsten Tollefson, Felix Werner, Samridha Kunwar, Vincent Marandon, Alberto Carramiñana, Ramiro Torres Escobedo, Israel Martinez Castellanos, Raquel Diaz Hernandez, Nicola Omodei, José Serna-Franco, Gerd J. Kunde, Sara Coutiño de Leon, Oscar Chaparro-Amaro, Juan Carlos Díaz Vélez, Vardan Baghmanyan, Ernesto Belmont-Moreno, Arturo Iriarte, Armelle Jardin-Blicq, Diego Garcia Aguilar, Jim Hinton, Wayne Robert Springer, John Matthews, Sergio Hernández Cadena, Jesús Martínez-Castro, Jorge Luis Flores, Ibrahim Torres, Jose Luis García-Luna, Arnulfo Zepeda, Oscar Martinez, Rhiannon Turner, Brian Fick, Robert Ellsworth, Lorenzo Diaz, Elijah Willox, J. T. Linnemann, Eduardo Moreno Barbosa, Edna Ruiz-Velasco, Chad Brisbois, Karen S. Caballero Mora, Umberto Cotti, Sabrina Casanova, José Roberto Angeles Camacho, Amid Nayerhoda, Ke Fang, Brenda Dingus, Daniel Omar Avila Rojas, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Ruben Lopez-Coto, Yunior Pérez Araujo, Anna Lia Longinotti, Humberto Ibarguen Salazar, Mehr Nisa, and Ian James Watson

Subjects
Physics, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Molecular cloud, Hadron, Cutoff, Spectral energy distribution, High Energy Physics::Experiment, Cosmic ray, Astrophysics, Effects of high altitude on humans, Astrophysics::Galaxy Astrophysics, Cherenkov radiation
Abstract

eHWC J1825-134 is one of the brightest Galactic 𝛾-ray sources above 50 TeV observed by High Altitude Water Cherenkov 𝛾-Ray Observatory (HAWC). Detailed morphological studies have revealed a new point-like source inside this region with a spectral energy distribution extending beyond 200 TeV without any cutoff. These very-high-energy 𝛾 rays emission can originate from leptonic or hadronic processes. The new point-like source is located in a region containing PWNe and a high-density giant molecular cloud [MML2017]99. If the source emission is associated with the hadronic scenario the TeV 𝛾 rays may have been produced by cosmic rays colliding with ambient gas. If this were the case, eHWC J1825-134 is an indicator of the existence of a galactic PeVatron in the region that accelerates particles up to PeV energies.

Published
2021

10. A GeV to TeV view of shell-type SNRs

Author

Miguel Mostafa, Cederik León de León, Brian Humensky, Gerd J. Kunde, Segev BenZvi, Mora Durocher, Petra Hüntemeyer, José Serna-Franco, Vikas Joshi, Ian Herzog, Hugo Alberto Ayala Solares, Mateo Fernandez Alonso, Hazal Goksu, Humberto Ibarguen Salazar, Roberto Noriega-Papaqui, Wayne Robert Springer, Binita Hona, Michelle Hui, Hawc, Jorge Cotzomi, Joshua A. Wood, Ahron S. Barber, Eduardo Moreno Barbosa, James Ryan, Jesús Martínez-Castro, Gilgamesh Luis-Raya, Rishi Babu, Joe Lundeen, J. T. Linnemann, Kelly Malone, Mehr Nisa, D. Berley, Dirk Lennarz, Kirsten Tollefson, Amid Nayerhoda, Vincent Marandon, Alberto Carramiñana, Alison Peisker, Samridha Kunwar, Ian James Watson, Michael Schneider, Andrew James Smith, Felix Werner, Raquel Diaz Hernandez, Vardan Baghmanyan, Oscar Chaparro-Amaro, Israel Martinez Castellanos, Gwenael Giacinti, Henrike Fleischhack, María Catalina Espinoza Hernández, David Kieda, Jorge Antonio Morales Soto, Tomás Capistrán, Pedro Miranda-Romagnoli, Juan Carlos Díaz Vélez, Laura Olivera-Nieto, Anushka Udara Abeysekara, Jose Andres Garcia-Gonzalez, Hermes Leon Vargas, Eucario Gonzalo Pérez Pérez, Fernando Garfias, Sara Coutiño de Leon, Arnulfo Zepeda, Hannah Jhee, César Alvarez, Armelle Jardin-Blicq, Brian Fick, Thomas Weisgarber, Lorenzo Diaz, Jose Luis García-Luna, Nissim Illich Fraija, Andrea Albert, Guillermo García-Torales, Arun Babu Kollamparambil, Ernesto Belmont-Moreno, Jim Hinton, Harm Schoorlemmer, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Michael Newbold, Sergio Hernández Cadena, Brenda Dingus, Juan Carlos Arteaga Velazquez, Fernando Ureña-Mena, Daniel Omar Avila Rojas, J. Patrick Harding, Karen S. Caballero Mora, Jason Fan, Meghan Tanner, Elijah Willox, Colas Rivière, Humberto Martínez Huerta, Ruben Lopez-Coto, G. B. Yodh, Dezhi Huang, Xiaojie Wang, Ke Fang, Yunior Pérez Araujo, Anna Lia Longinotti, Luis Villaseñor, Maria Magdalena González, Alejandro Lara, Ramiro Torres Escobedo, Robert Ellsworth, Juan de Dios Álvarez Romero, Nicola Omodei, Eduardo de la Fuente, Umberto Cotti, Josefa Becerra Gonzalez, Sabrina Casanova, Filiberto Hueyotl-Zahuantitla, Edna Ruiz-Velasco, Rhiannon Turner, J. A. Goodman, William H. Lee, Chad Brisbois, Michael DuVernois, Arturo Iriarte, Julie McEnery, John Matthews, Chang Dong Rho, Oscar Martinez, José Roberto Angeles Camacho, Francisco Salesa Greus, Kristi Engel, Diego Garcia Aguilar, Lukas Nellen, Hao Zhou, Jorge Luis Flores, Ibrahim Torres, Ignacio Taboada, Ruben Alfaro, Jason Lee, and Daniel Rosa-Gonzalez

Subjects
Physics, Shell (structure), Astrophysics, Type (model theory)
Published
2021

11. Follow-up Analysis to Geminga's contribution to the Local Positron Excess with HAWC Gamma-Ray Observatory

Author

Alison Peisker, Andrew James Smith, Henrike Fleischhack, Eucario Gonzalo Pérez Pérez, Jorge Cotzomi, Guillermo García-Torales, Arun Babu Kollamparambil, Ian Herzog, Segev BenZvi, James Ryan, Hannah Jhee, J. Patrick Harding, Rishi Babu, Kelly Malone, Humberto Martínez Huerta, Josefa Becerra Gonzalez, Andrea Albert, Mattia Di Mauro, Vincent Marandon, Alberto Carramiñana, Ramiro Torres Escobedo, Karen S. Caballero Mora, Jose Luis García-Luna, Hawc, J. A. Goodman, Nicola Omodei, Samridha Kunwar, Fernando Garfias, Brenda Dingus, Michael Newbold, Ruben Lopez-Coto, Laura Olivera-Nieto, Raquel Diaz Hernandez, Vardan Baghmanyan, Israel Martinez Castellanos, Pooja Surajbali, Andrés Sandoval, Robert Ellsworth, Juan Carlos Arteaga Velazquez, Daniel Omar Avila Rojas, Michael Schneider, Gus Sinnis, Yunior Pérez Araujo, Nissim Illich Fraija, Arturo Iriarte, Joe Lundeen, Felix Werner, Anna Lia Longinotti, Meghan Tanner, Thomas Weisgarber, Colas Rivière, Fernando Ureña-Mena, Dezhi Huang, Binita Hona, Brian Humensky, Tomás Capistrán Rojas, Umberto Cotti, Edna Ruiz-Velasco, Gaurang Yodh, Juan de Dios Álvarez Romero, Maria Magdalena González, César Alvarez, Gwenael Giacinti, Eduardo Moreno Barbosa, William H. Lee, Sabrina Casanova, Gerd J. Kunde, Julie McEnery, Jason Fan, María Catalina Espinoza Hernández, Chang Dong Rho, Jorge Antonio Morales Soto, Diego Garcia Aguilar, Vikas Joshi, Humberto Ibarguen Salazar, Eduardo de la Fuente, Anushka Udara Abeysekara, José Serna-Franco, Filiberto Hueyotl-Zahuantitla, Mehr Nisa, Ian James Watson, Jorge Luis Flores, Ibrahim Torres, Jose Andres Garcia-Gonzalez, Hugo Alberto Ayala Solares, Lukas Nellen, Hazal Goksu, Hao Zhou, Gilgamesh Luis-Raya, J. T. Linnemann, Arnulfo Zepeda, Wayne Robert Springer, Mora Durocher, Luis Villaseñor, Jesús Martínez-Castro, Roberto Noriega-Papaqui, Kirsten Tollefson, Brian Fick, Lorenzo Diaz, Petra Hüntemeyer, David Kieda, Ke Fang, Ernesto Belmont-Moreno, Mateo Fernandez Alonso, Jim Hinton, Juan Carlos Díaz Vélez, Sergio Hernández Cadena, Miguel Mostafa, Cederik León de León, Amid Nayerhoda, Armelle Jardin-Blicq, Oscar Chaparro-Amaro, Ahron S. Barber, Elijah Willox, Pedro Miranda-Romagnoli, Rhiannon Turner, Chad Brisbois, José Roberto Angeles Camacho, Francisco Salesa Greus, Joshua Wood, Sara Coutiño de Leon, Hermes Leon Vargas, Kristi Engel, John Matthews, Alejandro Lara, Dirk Lennarz, Oscar Martinez, Michael DuVernois, Ignacio Taboada, Ruben Alfaro, Michelle Hui, Harm Schoorlemmer, Jason Lee, Daniel Rosa-Gonzalez, David Berley, and Xiaojie Wang

Subjects
Physics, Positron, Observatory, Gamma ray, Astrophysics
Published
2021

12. Galactic Cosmic Ray increase associated to an interplanetary magnetic cloud observed by HAWC

Author

María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Anushka Udara Abeysekara, Andrea Albert, Harm Schoorlemmer, Dirk Lennarz, Francisco Salesa Greus, Juan Carlos Arteaga Velazquez, Brian Humensky, David Berley, Laura Olivera-Nieto, J. Patrick Harding, Humberto Martínez Huerta, Meghan Tanner, Hannah Jhee, Joshua Wood, Colas Rivière, Xiaojie Wang, Brenda Dingus, Daniel Omar Avila Rojas, Hugo Alberto Ayala Solares, Ramiro Torres Escobedo, Diego Garcia Aguilar, Mora Durocher, Rishi Babu, Roberto Noriega-Papaqui, Hawc, Petra Hüntemeyer, Kelly Malone, Edna Ruiz-Velasco, Eduardo Moreno Barbosa, Nicola Omodei, Nissim Illich Fraija, James Ryan, Kristi Engel, Vincent Marandon, Alberto Carramiñana, Arturo Iriarte, Sara Coutiño de Leon, Josefa Becerra Gonzalez, Miguel Mostafa, Oscar Chaparro-Amaro, Alison Peisker, Cederik León de León, Joe Lundeen, Jorge Luis Flores, Ibrahim Torres, Jason Fan, Raquel Diaz Hernandez, Vardan Baghmanyan, Michelle Hui, Mateo Fernandez Alonso, José Serna-Franco, Arnulfo Zepeda, Brian Fick, Lorenzo Diaz, Rhiannon Turner, Andrew James Smith, Fernando Garfias, Hermes Leon Vargas, Samridha Kunwar, J. A. Goodman, Israel Martinez Castellanos, Thomas Weisgarber, Chad Brisbois, Ke Fang, Henrike Fleischhack, J. T. Linnemann, David Kieda, Lukas Nellen, Hao Zhou, Alejandro Lara, Gerd J. Kunde, Luis Villaseñor, Ernesto Belmont-Moreno, César Alvarez, Gwenael Giacinti, Michael DuVernois, Jim Hinton, Jorge Cotzomi, Jose Andres Garcia-Gonzalez, Hazal Goksu, Ahron S. Barber, John Matthews, José Roberto Angeles Camacho, Jesús Martínez-Castro, Sergio Hernández Cadena, Eucario Gonzalo Pérez Pérez, Oscar Martinez, Segev BenZvi, Elijah Willox, Guillermo García-Torales, Arun Babu Kollamparambil, Karen S. Caballero Mora, Jose Luis García-Luna, Ignacio Taboada, Pooja Surajbali, Andrés Sandoval, Robert Ellsworth, Dezhi Huang, Ruben Alfaro, Gus Sinnis, Juan Carlos Díaz Vélez, Jason Lee, Fernando Ureña-Mena, Umberto Cotti, Daniel Rosa-Gonzalez, Armelle Jardin-Blicq, Gaurang Yodh, Sabrina Casanova, Binita Hona, Michael Schneider, Felix Werner, Ian Herzog, Wayne Robert Springer, Maria Magdalena González, Vikas Joshi, Eduardo de la Fuente, Filiberto Hueyotl-Zahuantitla, Amid Nayerhoda, Gilgamesh Luis-Raya, Kirsten Tollefson, Ruben Lopez-Coto, Michael Newbold, Yunior Pérez Araujo, Anna Lia Longinotti, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Humberto Ibarguen Salazar, Mehr Nisa, Pedro Miranda-Romagnoli, and Ian James Watson

Subjects
Physics, Range (particle radiation), Astrophysics::High Energy Astrophysical Phenomena, Physics::Space Physics, Flux, Cosmic ray, Astrophysics, Magnetic cloud, Interplanetary spaceflight, Anisotropy, Magnetic flux, Magnetic field
Abstract

We present the observation of an anomalous increment of the galactic cosmic ray (GCR) flux observed by the HAWC array during October 2016. We propose that this anisotropy of the GCR flux was caused by a magnetic flux rope (MFR) i. e., by the helicoidal magnetic field of an interplanetary coronal mass ejection observed at 1 AU at the same time. We computed the trajectory of protons with energy in the range of 10 to 60 GeV, traveling inside the helicoidal magnetic field observed in situ. The direction of these particles changes towards the axis of the MFR resulting in an anisotropy of the GCR flux along this axis. This model shows that the alignment between the MFR axis and the HAWC s asymptotic direction, combined with the high sensitivity of HAWC, allowed us to observe the effect of the passage of the MFR on the GCR flux. We present the HAWC observation associated with the passage of the MFR as well as the helio- spheric circumstances around such phenomenon.

Published
2021

13. Reconstruction of Nearly-Horizontal Muons in the HAWC Observatory

Author

Ernesto Belmont-Moreno, Jim Hinton, Sergio Hernández Cadena, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Harm Schoorlemmer, Anushka Udara Abeysekara, Dirk Lennarz, Elijah Willox, Brian Humensky, David Berley, Hazal Goksu, Hawc, Dezhi Huang, Gerd J. Kunde, Xiaojie Wang, Robert Ellsworth, J. Patrick Harding, Humberto Martínez Huerta, Jesús Martínez-Castro, Gwenael Giacinti, Joe Lundeen, Ian Herzog, Eduardo Moreno Barbosa, Umberto Cotti, Hugo Alberto Ayala Solares, Alejandro Lara, Wayne Robert Springer, Sabrina Casanova, César Alvarez, Ramiro Torres Escobedo, Andrea Albert, Pedro Miranda-Romagnoli, Mora Durocher, Roberto Noriega-Papaqui, Michael Schneider, Felix Werner, Michael DuVernois, Nicola Omodei, Petra Hüntemeyer, Eucario Gonzalo Pérez Pérez, Juan Carlos Arteaga Velazquez, Meghan Tanner, Miguel Mostafa, Josefa Becerra Gonzalez, Cederik León de León, Arturo Iriarte, Mateo Fernandez Alonso, Hermes Leon Vargas, Michelle Hui, Ke Fang, Colas Rivière, J. A. Goodman, Ruben Lopez-Coto, Vikas Joshi, Amid Nayerhoda, Yunior Pérez Araujo, Ahron S. Barber, Anna Lia Longinotti, Segev BenZvi, Guillermo García-Torales, Arun Babu Kollamparambil, Samridha Kunwar, Israel Martinez Castellanos, Jorge Cotzomi, Sara Coutiño de Leon, Laura Olivera-Nieto, Maria Magdalena González, Gilgamesh Luis-Raya, Arnulfo Zepeda, Brian Fick, Kirsten Tollefson, Fernando Garfias, Jose Andres Garcia Gonzalez, Lorenzo Diaz, Binita Hona, David Kieda, Thomas Weisgarber, Brenda Dingus, Humberto Ibarguen Salazar, Lukas Nellen, Eduardo de la Fuente, Daniel Omar Avila Rojas, Hao Zhou, José Serna-Franco, Alison Peisker, Filiberto Hueyotl-Zahuantitla, Rishi Babu, Jose Luis García-Luna, Michael Newbold, Kelly Malone, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Diego Garcia Aguilar, Andrew James Smith, Hannah Jhee, Vincent Marandon, Alberto Carramiñana, Fernando Ureña-Mena, Raquel Diaz Hernandez, Vardan Baghmanyan, Gaurang Yodh, Mehr Nisa, Nissim Illich Fraija, Henrike Fleischhack, Edna Ruiz-Velasco, Jorge Luis Flores, Ibrahim Torres, J. T. Linnemann, James Ryan, Ian James Watson, Jason Fan, Juan Carlos Díaz Vélez, Armelle Jardin-Blicq, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Rhiannon Turner, Chad Brisbois, José Roberto Angeles Camacho, Luis Villaseñor, Karen S. Caballero Mora, Francisco Salesa Greus, Joshua Wood, Kristi Engel, John Matthews, Oscar Martinez, Ignacio Taboada, Ruben Alfaro, Jason Lee, and Daniel Rosa-Gonzalez

Subjects
Muon, Observatory, Astronomy, Geology
Published
2021

14. Spectral and Energy Morphology Analysis Study of HAWC J2031+415

Author

Ian Herzog, Wayne Robert Springer, Rhiannon Turner, Chad Brisbois, James Ryan, Amid Nayerhoda, José Roberto Angeles Camacho, Dirk Lennarz, Ruben Lopez-Coto, Luis Villaseñor, Robert Ellsworth, Segev BenZvi, Yunior Pérez Araujo, Anna Lia Longinotti, Brian Humensky, Andrea Albert, Umberto Cotti, Juan Carlos Arteaga Velazquez, Harm Schoorlemmer, Juan de Dios Álvarez Romero, Karen S. Caballero Mora, Sabrina Casanova, Dezhi Huang, Eucario Gonzalo Pérez Pérez, Meghan Tanner, Colas Rivière, Laura Olivera-Nieto, Samridha Kunwar, Israel Martinez Castellanos, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Hugo Alberto Ayala Solares, David Berley, Roberto Noriega-Papaqui, Miguel Mostafa, Maria Magdalena González, Guillermo García-Torales, Fernando Ureña-Mena, Cederik León de León, Arun Babu Kollamparambil, Gaurang Yodh, Brenda Dingus, Hawc, Eduardo de la Fuente, Hermes Leon Vargas, Binita Hona, Xiaojie Wang, Ke Fang, Filiberto Hueyotl-Zahuantitla, Jesús Martínez-Castro, Daniel Omar Avila Rojas, Mora Durocher, Petra Hüntemeyer, Lukas Nellen, Michelle Hui, Hao Zhou, Oscar Chaparro-Amaro, Mateo Fernandez Alonso, Ernesto Belmont-Moreno, Jim Hinton, Sergio Hernández Cadena, J. Patrick Harding, Humberto Martínez Huerta, Alison Peisker, Andrew James Smith, Joe Lundeen, Fernando Garfias, Ramiro Torres Escobedo, Elijah Willox, Sara Coutiño de Leon, Henrike Fleischhack, Nicola Omodei, Thomas Weisgarber, Gwenael Giacinti, Arturo Iriarte, Jorge Cotzomi, Eduardo Moreno Barbosa, Josefa Becerra Gonzalez, José Serna-Franco, J. A. Goodman, Edna Ruiz-Velasco, Juan Carlos Díaz Vélez, Gerd J. Kunde, Armelle Jardin-Blicq, Jose Luis García-Luna, Ahron S. Barber, J. T. Linnemann, Alejandro Lara, Rishi Babu, Kelly Malone, Hazal Goksu, Michael DuVernois, Vincent Marandon, Alberto Carramiñana, Jose Andres Garcia-Gonzalez, David Kieda, Michael Newbold, Hannah Jhee, Nissim Illich Fraija, Jason Fan, Vikas Joshi, Gilgamesh Luis-Raya, Diego Garcia Aguilar, Jorge Luis Flores, Ibrahim Torres, Kirsten Tollefson, Raquel Diaz Hernandez, Vardan Baghmanyan, John Matthews, Oscar Martinez, Francisco Salesa Greus, Joshua Wood, Kristi Engel, Ignacio Taboada, Ruben Alfaro, Jason Lee, Daniel Rosa-Gonzalez, Pedro Miranda-Romagnoli, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Anushka Udara Abeysekara, César Alvarez, Michael Schneider, Felix Werner, Arnulfo Zepeda, Brian Fick, Lorenzo Diaz, William H. Lee, Julie McEnery, Chang Dong Rho, Humberto Ibarguen Salazar, Mehr Nisa, and Ian James Watson

Subjects
Physics, Range (particle radiation), Star cluster, OB star, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Cluster (physics), Cygnus OB2, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Pulsar wind nebula, Astrophysics::Galaxy Astrophysics, Cherenkov radiation
Abstract

The Cygnus Cocoon region is a complex region containing an OB star cluster that is prominent in the TeV energy range. Located in this region is 3HWC J2031+415, a significant TeV gamma-ray source whose emission is possibly associated with 2 components, the Cygnus OB2 star cluster and a pulsar wind nebula (PWN). In this work, several modelling methods are presented to best describe the emission. These models disentangle emission believed to be from the Cocoon and isolate the component emitted by the probable PWN. I will present several spectral models to describe the emission of the probable PWN using the latest data set from the High-Altitude Water Cherenkov (HAWC) observatory. Furthermore, I will present an energy morphology study of the PWN component of 3HWC J2031+415 in distinct energy bands.

Published
2021

15. A search for spectral hardening in HAWC sources above 56 TeV

Author

Mora Durocher, Petra Hüntemeyer, Dirk Lennarz, Mateo Fernandez Alonso, Hugo Alberto Ayala Solares, Wayne Robert Springer, Roberto Noriega-Papaqui, Pooja Surajbali, Andrés Sandoval, Ernesto Belmont-Moreno, Gus Sinnis, Jim Hinton, Fernando Ureña-Mena, Sergio Hernández Cadena, Gaurang Yodh, Eucario Gonzalo Pérez Pérez, Laura Olivera-Nieto, Jose Andres Garcia-Gonzalez, Oscar Chaparro-Amaro, Brian Humensky, Elijah Willox, Jesús Martínez-Castro, Michael Newbold, Guillermo García-Torales, Arun Babu Kollamparambil, Amid Nayerhoda, Pedro Miranda-Romagnoli, Humberto Ibarguen Salazar, Hawc, James Ryan, Juan Carlos Díaz Vélez, Fernando Garfias, Armelle Jardin-Blicq, Andrea Albert, Thomas Weisgarber, Mehr Nisa, Joe Lundeen, Josefa Becerra Gonzalez, Ian James Watson, Diego Garcia Aguilar, Juan Carlos Arteaga Velazquez, Ramiro Torres Escobedo, Robert Ellsworth, Vikas Joshi, Harm Schoorlemmer, Michelle Hui, Miguel Mostafa, J. A. Goodman, Meghan Tanner, Jorge Luis Flores, Ibrahim Torres, Cederik León de León, Nicola Omodei, Colas Rivière, Alison Peisker, Andrew James Smith, Rhiannon Turner, David Kieda, César Alvarez, Chad Brisbois, Arturo Iriarte, Samridha Kunwar, David Berley, Umberto Cotti, Dezhi Huang, Henrike Fleischhack, Hazal Goksu, Gilgamesh Luis-Raya, Kirsten Tollefson, Israel Martinez Castellanos, Xiaojie Wang, Ahron S. Barber, Rishi Babu, Kelly Malone, Vincent Marandon, Alberto Carramiñana, Sabrina Casanova, José Roberto Angeles Camacho, Gerd J. Kunde, Karen S. Caballero Mora, Juan de Dios Álvarez Romero, Michael Schneider, Felix Werner, Binita Hona, Raquel Diaz Hernandez, Vardan Baghmanyan, William H. Lee, Hannah Jhee, Julie McEnery, Sara Coutiño de Leon, Chang Dong Rho, Edna Ruiz-Velasco, Nissim Illich Fraija, Segev BenZvi, Ruben Lopez-Coto, Luis Villaseñor, Jason Fan, Yunior Pérez Araujo, Arnulfo Zepeda, Ke Fang, Anna Lia Longinotti, Lukas Nellen, Ignacio Taboada, Brian Fick, Lorenzo Diaz, Alejandro Lara, J. Patrick Harding, Hao Zhou, Michael DuVernois, Ruben Alfaro, Humberto Martínez Huerta, Jorge Cotzomi, Jason Lee, Daniel Rosa-Gonzalez, Jose Luis García-Luna, John Matthews, Oscar Martinez, Francisco Salesa Greus, Joshua Wood, Kristi Engel, Eduardo Moreno Barbosa, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Anushka Udara Abeysekara, Maria Magdalena González, Eduardo de la Fuente, Filiberto Hueyotl-Zahuantitla, Ian Herzog, Hermes Leon Vargas, Brenda Dingus, Daniel Omar Avila Rojas, José Serna-Franco, J. T. Linnemann, and Gwenael Giacinti

Subjects
Physics, Spectral index, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Hardening (metallurgy), Gamma ray, Astrophysics, Cherenkov radiation
Abstract

The High Altitude Water Cherenkov (HAWC) Observatory is a wide-field-of-view gamma-ray observatory that is optimized to detect gamma rays between ~300 GeV and several hundred TeV. The HAWC Collaboration recently released their third source catalog (3HWC), which contains 65 sources. One of these sources, the ultra-high-energy gamma-ray source 3HWC J1908+063, may exhibit a hardening of the spectral index at the highest energies (above 56 TeV). At least two populations of particles are needed to satisfactorily explain the highest energy emission. This second component could be leptonic or hadronic in origin. If it is hadronic in origin, it would imply the presence of protons with energies up to $\sim$1 PeV near the source. We have searched other 3HWC sources for the presence of this spectral hardening feature. If observed, this would imply that the sources could make good PeVatron candidates.

Published
2021

16. Particle Acceleration in the Cygnus Superbubble

Author

Sara Coutiño de Leon, Hazal Goksu, Francisco Salesa Greus, Gwenael Giacinti, Joshua Wood, Eucario Gonzalo Pérez Pérez, Rishi Babu, Samridha Kunwar, Vikas Joshi, Kelly Malone, Israel Martinez Castellanos, Kristi Engel, Binita Hona, Michael Newbold, Vincent Marandon, Ian Herzog, Segev BenZvi, Guillermo García-Torales, Arun Babu Kollamparambil, Alberto Carramiñana, Ernesto Belmont-Moreno, Gilgamesh Luis-Raya, Kirsten Tollefson, Rhiannon Turner, Harm Schoorlemmer, Chad Brisbois, Robert Ellsworth, Eduardo Moreno Barbosa, Jim Hinton, Michelle Hui, Raquel Diaz Hernandez, Vardan Baghmanyan, Brenda Dingus, Wayne Robert Springer, James Ryan, Fernando Garfias, Daniel Omar Avila Rojas, Sergio Hernández Cadena, José Roberto Angeles Camacho, J. Patrick Harding, John Matthews, Humberto Martínez Huerta, David Berley, Arnulfo Zepeda, Umberto Cotti, Brian Fick, José Serna-Franco, Thomas Weisgarber, Oscar Martinez, Jesús Martínez-Castro, Amid Nayerhoda, Lorenzo Diaz, Xiaojie Wang, Alison Peisker, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Sabrina Casanova, Tomás Capistrán, Elijah Willox, Andrew James Smith, Diego Garcia Aguilar, Gerd J. Kunde, J. T. Linnemann, Andrea Albert, Henrike Fleischhack, Dezhi Huang, Jorge Luis Flores, Ibrahim Torres, Ignacio Taboada, Alejandro Lara, Dirk Lennarz, Ruben Alfaro, Juan Carlos Arteaga Velazquez, Anushka Udara Abeysekara, Jorge Cotzomi, Meghan Tanner, Hermes Leon Vargas, Colas Rivière, Jason Lee, Laura Olivera-Nieto, Michael DuVernois, Edna Ruiz-Velasco, Daniel Rosa-Gonzalez, Hugo Alberto Ayala Solares, Michael Schneider, Juan Carlos Díaz Vélez, Armelle Jardin-Blicq, Miguel Mostafa, Felix Werner, Cederik León de León, Roberto Noriega-Papaqui, Jose Luis García-Luna, Ramiro Torres Escobedo, Nicola Omodei, Arturo Iriarte, Ke Fang, César Alvarez, Pedro Miranda-Romagnoli, Oscar Chaparro-Amaro, Josefa Becerra Gonzalez, J. A. Goodman, Lukas Nellen, Maria Magdalena González, Hao Zhou, Eduardo de la Fuente, Hawc, Filiberto Hueyotl-Zahuantitla, Ahron S. Barber, Joe Lundeen, Jose Andres Garcia-Gonzalez, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Hannah Jhee, Fernando Ureña-Mena, Nissim Illich Fraija, Brian Humensky, Gaurang Yodh, Jason Fan, Mora Durocher, Petra Hüntemeyer, Mateo Fernandez Alonso, David Kieda, Luis Villaseñor, Karen S. Caballero Mora, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Humberto Ibarguen Salazar, Mehr Nisa, Ian James Watson, Ruben Lopez-Coto, Yunior Pérez Araujo, and Anna Lia Longinotti

Subjects
Particle acceleration, Physics, Superbubble, Astrophysics
Published
2021

17. Study of the morphology of the region surrounding eHWC J1850+001

Author

Fernando Garfias, Thomas Weisgarber, Alison Peisker, Andrew James Smith, Alejandro Lara, Rhiannon Turner, Henrike Fleischhack, Chad Brisbois, Michael DuVernois, Wayne Robert Springer, José Roberto Angeles Camacho, Amid Nayerhoda, Pedro Miranda-Romagnoli, Hazal Goksu, Hannah Jhee, Samridha Kunwar, Israel Martinez Castellanos, Dirk Lennarz, Humberto Ibarguen Salazar, Ramiro Torres Escobedo, Nicola Omodei, Rishi Babu, Kelly Malone, Harm Schoorlemmer, Arturo Iriarte, Hugo Alberto Ayala Solares, Jorge Cotzomi, Ian Herzog, Vincent Marandon, Alberto Carramiñana, Pooja Surajbali, Andrés Sandoval, Nissim Illich Fraija, Eucario Gonzalo Pérez Pérez, Mehr Nisa, Juan Carlos Díaz Vélez, Roberto Noriega-Papaqui, Ian James Watson, Gus Sinnis, Raquel Diaz Hernandez, Vardan Baghmanyan, Armelle Jardin-Blicq, Michael Newbold, Hawc, Gwenael Giacinti, Fernando Ureña-Mena, Gaurang Yodh, Edna Ruiz-Velasco, Andrea Albert, Guillermo García-Torales, Arun Babu Kollamparambil, John Matthews, David Berley, Oscar Chaparro-Amaro, Joe Lundeen, Jason Fan, Jose Luis García-Luna, Mora Durocher, Xiaojie Wang, Oscar Martinez, Petra Hüntemeyer, Juan Carlos Arteaga Velazquez, Mateo Fernandez Alonso, Diego Garcia Aguilar, Michelle Hui, J. Patrick Harding, Humberto Martínez Huerta, Meghan Tanner, María Catalina Espinoza Hernández, Maria Magdalena González, Colas Rivière, Ke Fang, Jorge Antonio Morales Soto, Tomás Capistrán, Ruben Lopez-Coto, Jorge Luis Flores, Ibrahim Torres, Francisco Salesa Greus, Joshua Wood, Hermes Leon Vargas, Sara Coutiño de Leon, Ahron S. Barber, Yunior Pérez Araujo, Anna Lia Longinotti, César Alvarez, Lukas Nellen, Hao Zhou, Eduardo de la Fuente, Anushka Udara Abeysekara, David Kieda, Brenda Dingus, Daniel Omar Avila Rojas, José Serna-Franco, Michael Schneider, Binita Hona, Filiberto Hueyotl-Zahuantitla, Felix Werner, Robert Ellsworth, Kristi Engel, Vikas Joshi, Umberto Cotti, Juan de Dios Álvarez Romero, Sabrina Casanova, Jose Andres Garcia-Gonzalez, Jesús Martínez-Castro, James Ryan, William H. Lee, Julie McEnery, Ignacio Taboada, Chang Dong Rho, J. T. Linnemann, Gilgamesh Luis-Raya, Arnulfo Zepeda, Laura Olivera-Nieto, Kirsten Tollefson, Ruben Alfaro, Brian Fick, Lorenzo Diaz, Jason Lee, Daniel Rosa-Gonzalez, Eduardo Moreno Barbosa, Luis Villaseñor, Brian Humensky, Dezhi Huang, Karen S. Caballero Mora, Josefa Becerra Gonzalez, J. A. Goodman, Ernesto Belmont-Moreno, Jim Hinton, Sergio Hernández Cadena, Elijah Willox, Segev BenZvi, Miguel Mostafa, Cederik León de León, and Gerd J. Kunde

Subjects
Morphology (linguistics), Materials science, Biophysics
Published
2021

18. Characterizing gamma-ray sources with HAL (HAWC Accelerated likelihood) and 3ML

Author

Hannah Jhee, Josefa Becerra Gonzalez, Nissim Illich Fraija, J. A. Goodman, Arnulfo Zepeda, Brian Fick, Lorenzo Diaz, José Serna-Franco, Jason Fan, Eucario Gonzalo Pérez Pérez, Diego Garcia Aguilar, Edna Ruiz-Velasco, Jorge Luis Flores, Ibrahim Torres, J. T. Linnemann, Guillermo García-Torales, Arun Babu Kollamparambil, Eduardo Moreno Barbosa, Wayne Robert Springer, Ernesto Belmont-Moreno, Hazal Goksu, Juan Carlos Díaz Vélez, Binita Hona, David Kieda, Jim Hinton, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Armelle Jardin-Blicq, Jorge Cotzomi, Harm Schoorlemmer, Sergio Hernández Cadena, Brian Humensky, Rishi Babu, Anushka Udara Abeysekara, Kelly Malone, Amid Nayerhoda, Jesús Martínez-Castro, Fernando Garfias, James Ryan, Gwenael Giacinti, Vincent Marandon, Alberto Carramiñana, Samridha Kunwar, Jose Luis García-Luna, Elijah Willox, Alison Peisker, Thomas Weisgarber, Michael Schneider, Raquel Diaz Hernandez, Andrew James Smith, Israel Martinez Castellanos, Ruben Lopez-Coto, Vardan Baghmanyan, David Berley, Felix Werner, Lukas Nellen, Dezhi Huang, Robert Ellsworth, Henrike Fleischhack, Yunior Pérez Araujo, Anna Lia Longinotti, Hao Zhou, Xiaojie Wang, Hermes Leon Vargas, Michael Newbold, Umberto Cotti, Rhiannon Turner, Hugo Alberto Ayala Solares, Sabrina Casanova, Chad Brisbois, J. Patrick Harding, Roberto Noriega-Papaqui, Humberto Martínez Huerta, José Roberto Angeles Camacho, Vikas Joshi, Juan de Dios Álvarez Romero, Alejandro Lara, Ramiro Torres Escobedo, Brenda Dingus, Jose Andres Garcia-Gonzalez, Oscar Chaparro-Amaro, Nicola Omodei, Andrea Albert, Ahron S. Barber, Ke Fang, Karen S. Caballero Mora, William H. Lee, Daniel Omar Avila Rojas, Arturo Iriarte, Juan Carlos Arteaga Velazquez, Laura Olivera-Nieto, Julie McEnery, Michael DuVernois, Chang Dong Rho, Meghan Tanner, Gilgamesh Luis-Raya, Colas Rivière, Kirsten Tollefson, Humberto Ibarguen Salazar, Mehr Nisa, Ian James Watson, Sara Coutiño de Leon, Luis Villaseñor, Pooja Surajbali, Andrés Sandoval, Gus Sinnis, Fernando Ureña-Mena, Gaurang Yodh, Mora Durocher, Petra Hüntemeyer, Mateo Fernandez Alonso, Ignacio Taboada, Ruben Alfaro, Jason Lee, Daniel Rosa-Gonzalez, Francisco Salesa Greus, Joshua Wood, Kristi Engel, John Matthews, Pedro Miranda-Romagnoli, Oscar Martinez, Dirk Lennarz, Michelle Hui, Gerd J. Kunde, Maria Magdalena González, Segev BenZvi, Eduardo de la Fuente, Filiberto Hueyotl-Zahuantitla, Ian Herzog, Miguel Mostafa, Cederik León de León, César Alvarez, Hawc, and Joe Lundeen

Subjects
Physics, Gamma ray, Astrophysics
Published
2021

19. Search for TeV decaying dark matter from the Virgo cluster of galaxies

Author

Wayne Robert Springer, Mora Durocher, Petra Hüntemeyer, Mateo Fernandez Alonso, Ernesto Belmont-Moreno, Jim Hinton, Amid Nayerhoda, Laura Olivera-Nieto, Hugo Alberto Ayala Solares, Sergio Hernández Cadena, Elijah Willox, Michelle Hui, Francisco Salesa Greus, Joshua Wood, Michael Schneider, Pedro Miranda-Romagnoli, Felix Werner, Brian Humensky, Roberto Noriega-Papaqui, Hawc, Hermes Leon Vargas, José Serna-Franco, Edna Ruiz-Velasco, Kristi Engel, Alison Peisker, Michael Newbold, Hannah Jhee, Josefa Becerra Gonzalez, Joe Lundeen, Lukas Nellen, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Oscar Chaparro-Amaro, Juan de Dios Álvarez Romero, Dirk Lennarz, Tomás Capistrán, Andrew James Smith, J. T. Linnemann, Anushka Udara Abeysekara, J. A. Goodman, Hao Zhou, Pooja Surajbali, Andrés Sandoval, Binita Hona, Sara Coutiño de Leon, Henrike Fleischhack, Nissim Illich Fraija, Vikas Joshi, William H. Lee, Dezhi Huang, Ignacio Taboada, Julie McEnery, Ian Herzog, Gus Sinnis, Chang Dong Rho, César Alvarez, Ruben Alfaro, Rhiannon Turner, Chad Brisbois, Diego Garcia Aguilar, Fernando Garfias, Fernando Ureña-Mena, Gaurang Yodh, Eduardo Moreno Barbosa, Ramiro Torres Escobedo, Jason Fan, Gwenael Giacinti, Gilgamesh Luis-Raya, Thomas Weisgarber, Nicola Omodei, James Ryan, Humberto Ibarguen Salazar, Jason Lee, Jorge Luis Flores, Kirsten Tollefson, José Roberto Angeles Camacho, Ibrahim Torres, Eucario Gonzalo Pérez Pérez, Daniel Rosa-Gonzalez, Samridha Kunwar, Israel Martinez Castellanos, Arnulfo Zepeda, Arturo Iriarte, Alejandro Lara, Brian Fick, Jose Andres Garcia-Gonzalez, Lorenzo Diaz, Mehr Nisa, Karen S. Caballero Mora, Ian James Watson, Michael DuVernois, David Kieda, Guillermo García-Torales, Arun Babu Kollamparambil, J. Patrick Harding, Humberto Martínez Huerta, Maria Magdalena González, John Matthews, Gerd J. Kunde, Brenda Dingus, Harm Schoorlemmer, Daniel Omar Avila Rojas, Oscar Martinez, Eduardo de la Fuente, M. U. Nisa, Luis Villaseñor, David Berley, Hazal Goksu, Miguel Mostafa, Filiberto Hueyotl-Zahuantitla, Xiaojie Wang, Cederik León de León, Segev BenZvi, Juan Carlos Díaz Vélez, Armelle Jardin-Blicq, Ruben Lopez-Coto, Yunior Pérez Araujo, Anna Lia Longinotti, Ahron S. Barber, Rishi Babu, Kelly Malone, Vincent Marandon, Alberto Carramiñana, Raquel Diaz Hernandez, Vardan Baghmanyan, Andrea Albert, Ke Fang, Juan Carlos Arteaga Velazquez, Meghan Tanner, Robert Ellsworth, Colas Rivière, Umberto Cotti, Sabrina Casanova, Jorge Cotzomi, Jose Luis García-Luna, and Jesús Martínez-Castro

Subjects
Physics, Dark matter, Astrophysics, Virgo Cluster, Galaxy
Published
2021

20. The Ultra-High-Energy Source MGRO J1908+06

Author

Ian Herzog, Laura Olivera-Nieto, César Alvarez, María Catalina Espinoza Hernández, Jorge Antonio Morales Soto, Tomás Capistrán, Anushka Udara Abeysekara, Dezhi Huang, Robert Ellsworth, J. Patrick Harding, Humberto Martínez Huerta, James Ryan, Brian Humensky, Lukas Nellen, Eduardo Moreno Barbosa, Umberto Cotti, Hao Zhou, Sara Coutiño de Leon, Segev BenZvi, Sabrina Casanova, Jesús Martínez-Castro, Jose Andres Garcia-Gonzalez, Fernando Garfias, Michelle Hui, Hawc, Ramiro Torres Escobedo, Wayne Robert Springer, Nicola Omodei, Jorge Cotzomi, Andrea Albert, Thomas Weisgarber, Joe Lundeen, Arturo Iriarte, Harm Schoorlemmer, Josefa Becerra Gonzalez, Gwenael Giacinti, Karen S. Caballero Mora, Juan Carlos Arteaga Velazquez, Edna Ruiz-Velasco, Meghan Tanner, Alison Peisker, David Kieda, Dirk Lennarz, Colas Rivière, Andrew James Smith, J. A. Goodman, Mora Durocher, Petra Hüntemeyer, Henrike Fleischhack, Ernesto Belmont-Moreno, Amid Nayerhoda, David Berley, Luis Villaseñor, José Serna-Franco, Mateo Fernandez Alonso, Jim Hinton, Hugo Alberto Ayala Solares, Sergio Hernández Cadena, Hannah Jhee, Roberto Noriega-Papaqui, Juan Carlos Díaz Vélez, Jose Luis García-Luna, Maria Magdalena González, Armelle Jardin-Blicq, Elijah Willox, Miguel Mostafa, Pedro Miranda-Romagnoli, Binita Hona, Ahron S. Barber, Cederik León de León, Xiaojie Wang, Nissim Illich Fraija, Eucario Gonzalo Pérez Pérez, Oscar Chaparro-Amaro, Samridha Kunwar, Eduardo de la Fuente, Israel Martinez Castellanos, Filiberto Hueyotl-Zahuantitla, J. T. Linnemann, Jason Fan, Rhiannon Turner, Guillermo García-Torales, Arun Babu Kollamparambil, Rishi Babu, Ke Fang, Pooja Surajbali, Andrés Sandoval, Chad Brisbois, Gus Sinnis, Fernando Ureña-Mena, Gaurang Yodh, José Roberto Angeles Camacho, Brenda Dingus, Gerd J. Kunde, Daniel Omar Avila Rojas, Kelly Malone, Alejandro Lara, Vincent Marandon, Alberto Carramiñana, Michael DuVernois, Raquel Diaz Hernandez, Vardan Baghmanyan, Juan de Dios Álvarez Romero, William H. Lee, Julie McEnery, Chang Dong Rho, Ruben Lopez-Coto, Francisco Salesa Greus, Arnulfo Zepeda, Brian Fick, Lorenzo Diaz, Joshua Wood, Diego Garcia Aguilar, Yunior Pérez Araujo, Anna Lia Longinotti, Jorge Luis Flores, Ibrahim Torres, Kristi Engel, Michael Newbold, Michael Schneider, Felix Werner, Ignacio Taboada, Vikas Joshi, Ruben Alfaro, Jason Lee, Daniel Rosa-Gonzalez, Humberto Ibarguen Salazar, Gilgamesh Luis-Raya, Kirsten Tollefson, John Matthews, Oscar Martinez, Mehr Nisa, Ian James Watson, Hazal Goksu, and Hermes Leon Vargas

Subjects
Physics, High energy, education.field_of_study, Spectral index, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Population, Hadron, Spectral energy distribution, Astrophysics, education, Cherenkov radiation
Abstract

The TeV gamma-ray source MGRO J1908+06 is one of the highest-energy sources known, with observed emission by the High Altitude Water Cherenkov (HAWC) Observatory extending well past 100 TeV. The source exhibits both energy-dependent morphology and a spatially-dependent spectral index. The emission is likely to be dominantly leptonic, and associated with the radio-quiet PSR J1907+0602. However, one-population models do not describe the data well; a second particle population is needed to explain the shape of the spectral energy distribution at the highest energies. This component can be well-described by either leptonic or hadronic hypotheses. We discuss this feature and implications for detection by multi-wavelength and multi-messenger experiments.

Published
2021

21. Dark Matter Annihilation and Decay Searches with the High Altitude Water Cherenkov (HAWC) Observatory

Author

J. Patrick Harding and Brenda Dingus

Subjects
Physics, Baryonic dark matter, Hot dark matter, DAMA/NaI, Dark matter, Mixed dark matter, Scalar field dark matter, Warm dark matter, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Light dark matter
Abstract

In order to observe annihilation and decay of dark matter, several types of potential sources should be considered. Some sources, such as dwarf galaxies, are expected to have very low astrophysical backgrounds but fairly small dark matter densities. Other sources, like the Galactic center, are expected to have larger densities of dark matter but also have more complicated backgrounds from other astrophysical sources. To search for signatures of dark matter, the large field-of-view of the HAWC detector, covering 2 sr at a time, especially enables searches from sources of dark matter annihilation and decay, which are extended over several degrees on the sky. With a sensitivity over 2/3 of the sky, HAWC has the ability to probe a large fraction of the sky for the signals of TeV-mass dark matter. In particular, HAWC should be the most sensitive experiment to signals coming from dark matter with masses greater than 10-100 TeV. We present the HAWC sensitivity to annihilating and decaying dark matter signals for several likely sources of these signals.

Published
2016

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