Results 31 to 40 of about 34,781 (306)

Mass Modelling of dwarf Spheroidal Galaxies [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractWe study the origin and properties of unbound stars in the kinematic samples of dwarf spheroidal galaxies. For this purpose we have run a high resolution N-body simulation of a two-component dwarf galaxy orbiting in a Milky Way potential. We create mock kinematic data sets by observing the dwarf in different directions.
Klimentowski, J, Łokas, E L, Kazantzidis, S, Prada, F, Mayer, L, Mamon, G A   +5 more
openaire   +3 more sources

Dwarfs in Void Environments (DIVE): The Stellar Kinematics of Void Dwarf Galaxies Using the Keck Cosmic Web Imager

The Astrophysical Journal, 2023
Dwarf galaxies located in extremely underdense cosmic voids are excellent test beds for disentangling the effects of large-scale environments on galaxy formation and evolution. We present the first results of the Dwarfs in Void Environments Survey, which
Mithi A. C. de los Reyes, Evan N. Kirby, Zhuyun Zhuang, Charles C. Steidel, Yuguang Chen, Coral Wheeler   +5 more
doaj   +1 more source

The Andromeda Dwarf Spheroidal Galaxies [PDF]

Symposium - International Astronomical Union, 1999
Our current knowledge of M31's dwarf spheroidal companions is reviewed. Two topics of recent interest constitute the bulk of this review. First, color-magnitude diagrams reaching below the horizontal branch have been constructed for two M31 dwarf spheroidals, based on images from HST/WFPC2. The horizontal branches are predominantly red in both galaxies,
Armandroff, Taft E., Da Costa, Gary S.
openaire   +2 more sources

New Type Ia Supernova Yields and the Manganese and Nickel Problems in the Milky Way and Dwarf Spheroidal Galaxies [PDF]

Astrophysical Journal, 2019
In our quest to identify the progenitors of Type Ia supernovae (SNe Ia), we first update the nucleosynthesis yields for both near-Chandrasekhar- (Ch) and sub-Ch-mass white dwarfs (WDs) for a wide range of metallicities with our 2D hydrodynamical code and
C. Kobayashi, S. Leung, K. Nomoto
semanticscholar   +1 more source

Combined dark matter searches towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS [PDF]

International Conference on Rebooting Computing, 2019
The search for Dark Matter (DM) has great potential to reveal physics beyond the Standard Model. As such, searches for evidence of DM particles are being carried out using a wide range of techniques, such as direct searches for DM particles, searches for
C. Armand, H. Abdalla, F. Aharonian, F. Ait-Benkhali, O. Anguener, C. Arcaro, T. Armstrong, H. Ashkar, Michael Backes, V. Barbosa Martins, A. Barnacka, M. Barnard, R. Batzofin, Y. Becherini, D. Berge, K. Bernloehr, B. Bi, Markus Boettcher, C. Boisson, J. Bolmont, Mathieu Bony (de), M. Breuhaus, R. Brose, F. Brun, T. Bulik, T. Bylund, F. Cangemi, S. Caroff, J. Catalano, P. Chambéry, T. Chand, Andrew Chen, G. Cotter, Malgorzata Curlo, H. Dalgleish, J. Damascene Mbarubucyeye, I. Davids, James O. J. Davies, J. Devin, A. Djannati-Ataï, A. Dmytriiev, A. Donath, Victor Doroshenko, L. Dreyer, L. du Plessis, Connor V. Duffy, K. Egberts, S. Einecke, J. Ernenwein, S. Fegan, K. Feijen, A. Fiasson, G. Fichet de Clairfontaine, G. Fontaine, Lott Frans, M. Fuessling, S. Funk, S. Gabici, Y. Gallant, G. Giavitto, L. Giunti, D. Glawion, J. Glicenstein, M. Grondin, S. Hattingh, M. Haupt, G. Hermann, W. Hofmann, C. Hoischen, T. Holch, M. Holler, D. Horns, Zhiqiu Huang, D. Huber, M. Hörbe, M. Jamrozy, F. Jankowsky, I. Jung, E. Kasai, K. Katarzyński, U. Katz, D. Khangulyan, B. Khélifi, S. Klepser, W. Kluźniak, N. Komin, R. Konno, K. Kosack, D. Kostunin, M. Kreter, G. Kukec Mezek, A. Kundu, G. Lamanna, S. Le Stum, A. Lemière, M. Lemoine-Goumard, J. Lenain, Fabian Leuschner, Chris Levy, T. Lohse, A. Luashvili, I. Lypova, J. Mackey, J. Majumdar, D. Malyshev, D. Malyshev, P. Marchegiani, A. Marcowith, A. Mares, G. Marti'i-Devesa, R. Marx, G. Maurin, P. Meintjes, M. Meyer, A. Mitchell, R. Moderski, L. Mohrmann, Alessandro Montanari, C. Moore, P. Morris, E. Moulin, J. Muller, T. Murach, K. Nakashima, Mathieu Naurois (de), H. Ndiyavala, J. Niemiec, A. Noel, P. O’Brien, L. Oberholzer, S. Ohm, Emma Ona-Wilhelmi (de), M. Ostrowski, S. Panny, M. Panter, D. Parsons, G. Peron, S. Pita, V. Poireau, D. Prokhorov, H. Prokoph, G. Puehlhofer, M. Punch, A. Quirrenbach, P. Reichherzer, A. Reimer, O. Reimer, Q. Remy, M. Renaud, B. Reville, F. Rieger, C. Romoli, G. Rowell, B. Rudak, H. Rueda Ricarte, Edna Ruiz Velasco, V. Sahakian, Simon Sailer, H. Salzmann, David Sánchez, A. Santangelo, Manami Sasaki, Johannes Schaefer, H. Schutte, U. Schwanke, F. Schüssler, M. Senniappan, A. Seyffert, J. Shapopi, K. Shiningayamwe, R. Simoni, A. Sinha, H. Sol, H. Spackman, A. Specovius, S. Spencer, M. Spir-Jacob, L. Stawarz, R. Steenkamp, C. Stegmann, S. Steinmassl, C. Steppa, Lei Sun, Tadayuki Takahashi, Takaaki Tanaka, T. Tavernier, A. Taylor, R. Terrier, H. Thiersen, C. Thorpe-Morgan, M. Tluczykont, L. Tomankova, M. Tsirou, N. Tsuji, R. Tuffs, Y. Uchiyama, J. V. D. van der Walt, C. van Eldik, C. van Rensburg, B. van Soelen, G. Vasileiadis, J. Veh, C. Venter, P. Vincent, J. Vink, H. Völk, S. Wagner, J. Watson, Richard White, A. Wierzcholska, Y. Wong, H. Yassin, A. Yusafzai, M. Zacharias, R. Zanin, D. Zargaryan, A. Zdziarski, A. Zech, Sylvia J. Zhu, A. Zmija, S. Zouari, N. Żywucka, A. Abeysekara, A. Albert, R. Alfaro, C. Álvarez, Juan de Dios Álvarez Romero, J. Angeles Camacho, J. C. Arteaga Velázquez, Arun Babu Kollamparambil, D. Avila Rojas, H. Ayala Solares, R. Babu, V. Baghmanyan, A. Barber, J. Becerra González, E. Belmont-Moreno, S. Benzvi, D. Berley, C. Brisbois, K. C. Caballero Mora, Tomás Capistrán Rojas, A. Carramiñana, S. Casanova, O. Chaparro-Amaro, U. Cotti, J. Cotzomi, S. Coutiño de León, E. de la Fuente, C. de León, Lorenzo Diaz, R. Díaz Hernández, J. C. Díaz Vélez, B. Dingus, M. Durocher, M. DuVernois, R. Ellsworth, K. Engel, María Catalina Espinoza Hernández, Jason Fan, K. Fang, M. Fernandez Alonso, B. Fick, H. Fleischhack, J. L. Flores, N. Fraija, Diego Garcia Aguilar, J. García-González, J. L. García-Luna, G. Garcia-Torales, F. Garfias, G. Giacinti, H. Goksu, M. González, J. Goodman, J. P. Harding, S. Hernández Cadena, I. Herzog, J. Hinton, Dezhi Huang, F. Hueyotl-Zahuantitla, M. Hui, B. Humensky, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, H. Jhee, V. Joshi, G. Kunde, S. Kunwar, A. Lara, Jason Lee, William H. Lee, D. Lennarz, H. León Vargas, J. Linnemann, A. Longinotti, R. López-Coto, G. Luis-Raya, J. Lundeen, K. Malone, V. Marandon, O. Martinez, Israel Martinez Castellanos, H. Martínez Huerta, J. Martínez-Castro, J. Matthews, J. Mcenery, P. Miranda-Romagnoli, Jorge Antonio Morales Soto, E. Moreno Barbosa, M. Mostafá, A. Nayerhoda, L. Nellen, M. Newbold, M. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, A. Peisker, Y. Pérez Araujo, Eucario Gonzalo Pérez Pérez, C. Rho, C. Rivière, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, F. Salesa Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, J. Serna-Franco, G. Sinnis, A. Smith, W. Springer, P. Surajbali, I. Taboada, M. Tanner, K. Tollefson, I. Torres, Ramiro Torres Escobedo, Rhiannon M. Turner, F. Ureña-Mena, L. Villaseñor, Xiaojie Wang, I. Watson, T. Weisgarber, Felix Werner, E. Willox, Joshua R. Wood, G. Yodh, A. Zepeda, Hao Zhou, M. Capasso, R. Ong, I. Sadeh, P. Kaaret, Weidong Jin, W. Benbow, R. Mukherjee, R. Prado, Matt Lundy, Sameer Patel, P. Moriarty, Gernot Maier, A. Furniss, K. Ragan, David Williams, J. Buckley, L. Fortson, J. Quinn, J. Holder, C. Giuri, E. Pueschel, D. Nieto, C. Adams, S. O’Brien, D. Ribeiro, K. Pfrang, O. Gueta, G. Foote, A. Weinstein, Sajan Kumar, T. Williamson, D. Tak, Conor McGrath, T. Kleiner, M. Pohl, Paul Reynolds, B. Hona, D. Hanna, M. Santander, G. Sembroski, S. Patel, M. Errando, M. Kertzman, O. Hervet, Mireia Nievas-Rosillo, Mark Lang, E. Roache, T. Humensky, R. Shang, V. Vassiliev, A. Chromey, A. Falcone, J. Christiansen, A. Otte, A. Gent, A. Brill, J. Ryan, K. Farrell, G. Gillanders, Q. Feng, A. Archer, D. Kieda   +414 more
semanticscholar   +1 more source

A global analysis of dark matter signals from 27 dwarf spheroidal galaxies using 11 years of Fermi-LAT observations [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
We search for a dark matter signal in 11 years of Fermi-LAT gamma-ray data from 27 Milky Way dwarf spheroidal galaxies with spectroscopically measured J-factors.
S. Hoof, A. Geringer-Sameth, R. Trotta
semanticscholar   +1 more source

Scaling relations for dark matter annihilation and decay profiles in dwarf spheroidal galaxies [PDF]

Monthly notices of the Royal Astronomical Society, 2018
Measuring the dark matter distribution in dwarf spheroidal galaxies (dSphs) from stellar kinematics is crucial for indirect dark matter searches, as these distributions set the fluxes for both dark matter annihilation (J-Factor) and decay (D-Factor ...
A. Pace, L. Strigari
semanticscholar   +1 more source

Dwarf Spheroidal Galaxies [PDF]

Symposium - International Astronomical Union, 1994
Dwarf Spheroidal (dSph) galaxies are the faintest baryonic systems recognized as galaxies. Understanding the structure and stellar populations of these systems is critical for the modelling of their formation and evolution, and by extension, for understanding the general problem of galaxy formation ...
openaire   +1 more source

Dark matter in dwarf spheroidal galaxies and indirect detection: a review [PDF]

Reports on progress in physics. Physical Society, 2018
Indirect dark matter searches targeting dwarf spheroidal galaxies (dSphs) have matured rapidly during the past decade. This has been because of the substantial increase in kinematic data sets from the dSphs, the new dSphs that have been discovered, and ...
L. Strigari
semanticscholar   +1 more source

The Origin Of Dwarf Spheroidal Galaxies [PDF]

Symposium - International Astronomical Union, 1983
Two dwarf spheroidal galaxies are associated with the Magellanic Stream with their major axes oriented along it. Evidence suggests that all the dwarf spheroidal satellites of the Galaxy belong to one or other of two streams of tidal debris. If this is true the orbits will give the first reliable determination of the total mass of the Galaxy out to 120 ...
openaire   +1 more source