Zobrazeno 1 - 10
of 23
pro vyhledávání: '"William Cerny"'
Publikováno v:
The Open Journal of Astrophysics, Vol 7 (2024)
The discovery of a star formed out of pair-instability supernova ejecta would have massive implications for the Population III star initial mass function and the existence of stars over 100 Msun, but none have yet been found. Recently, the star LAMOS
Externí odkaz:
https://doaj.org/article/abd6690ef4bb40269128b858b08a1d10
Autor:
Alexander P. Ji, Sanjana Curtis, Nicholas Storm, Vedant Chandra, Kevin C. Schlaufman, Keivan G. Stassun, Alexander Heger, Marco Pignatari, Adrian M. Price-Whelan, Maria Bergemann, Guy S. Stringfellow, Carla Fröhlich, Henrique Reggiani, Erika M. Holmbeck, Jamie Tayar, Shivani P. Shah, Emily J. Griffith, Chervin F. P. Laporte, Andrew R. Casey, Keith Hawkins, Danny Horta, William Cerny, Pierre Thibodeaux, Sam A. Usman, João A. S. Amarante, Rachael L. Beaton, Phillip A. Cargile, Cristina Chiappini, Charlie Conroy, Jennifer A. Johnson, Juna A. Kollmeier, Haining Li, Sarah Loebman, Georges Meynet, Dmitry Bizyaev, Joel R. Brownstein, Pramod Gupta, Sean Morrison, Kaike Pan, Solange V. Ramirez, Hans-Walter Rix, José Sánchez-Gallego
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 2, p L41 (2024)
Stars that formed with an initial mass of over 50 M _⊙ are very rare today, but they are thought to be more common in the early Universe. The fates of those early, metal-poor, massive stars are highly uncertain. Most are expected to directly collap
Externí odkaz:
https://doaj.org/article/cb019f1a53ca4e8bbf8ef53fff9533f7
Autor:
Simon E. T. Smith, William Cerny, Christian R. Hayes, Federico Sestito, Jaclyn Jensen, Alan W. McConnachie, Marla Geha, Julio F. Navarro, Ting S. Li, Jean-Charles Cuillandre, Raphaël Errani, Ken Chambers, Stephen Gwyn, Francois Hammer, Michael J. Hudson, Eugene Magnier, Nicolas Martin
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 92 (2024)
We present the discovery of Ursa Major III/UNIONS 1, the least luminous known satellite of the Milky Way, which is estimated to have an absolute V -band magnitude of $+{2.2}_{-0.3}^{+0.4}$ mag, equivalent to a total stellar mass of ${16}_{-5}^{+6}$ M
Externí odkaz:
https://doaj.org/article/0ac547a12b7d41008e0fb563b60ba654
Autor:
Yunchong Zhang, Viraj Manwadkar, Michael D. Gladders, Gourav Khullar, Håkon Dahle, Kate A. Napier, Guillaume Mahler, Keren Sharon, Owen S. Matthews Acuña, Finian Ashmead, William Cerny, Juan Remolina Gonzàlez, Katya Gozman, Benjamin C. Levine, Daniel Marohnic, Michael N. Martinez, Kaiya Merz, Yue Pan, Jorge A. Sanchez, Isaac Sierra, Emily E. Sisco, Ezra Sukay, Kiyan Tavangar, Erik Zaborowski
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 1, p 58 (2023)
We report the discovery of five bright, strong gravitationally lensed galaxies at 3 < z < 4: COOL J0101+2055 ( z = 3.459), COOL J0104−0757 ( z = 3.480), COOL J0145+1018 ( z = 3.310), COOL J0516−2208 ( z = 3.549), and COOL J1356+0339 ( z = 3.753).
Externí odkaz:
https://doaj.org/article/fc6fcc03e5d84081bbf6b4f120bf6a9a
Autor:
Quang H. Tran, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Elias K. Oakes, William Cerny, Dylan Hatt, Rachael L. Beaton
We determine the distance to the Sculptor Dwarf Spheroidal via three Population II stellar distance indicators: (a) the Tip of the Red Giant Branch (TRGB), (b) RR Lyrae variables (RRLs), and (c) the ridgeline of the blue horizontal branch (HB). High
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dba662732b47bf963e07d5c2d8215362
http://arxiv.org/abs/2205.08548
http://arxiv.org/abs/2205.08548
Autor:
Elias K. Oakes, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Quang H. Tran, William Cerny, Rachael L. Beaton, Mark Seibert
We determine three independent Population II distance moduli to the Fornax dwarf spheroidal (dSph) galaxy, using wide-field, ground-based $VI$ imaging acquired with the Magellan-Baade telescope at Las Campanas Observatory. After subtracting foregroun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65c7bb0c3dbf3f2abcd867032e1b7676
http://arxiv.org/abs/2204.09699
http://arxiv.org/abs/2204.09699
Autor:
William Cerny, Clara Eugenia Martínez Vázquez, Alex Drlica-Wagner, Pace, Andrew B., Burçin Mutlu-Pakdil, Ting Li, Alex Riley, Denija Crnojevic, Clecio Bom, Carballo-Bello, Jeffrey Carlin, Anirudh Chiti, Yumi Choi, Michelle Collins, Elise Darragh-Ford, Peter Ferguson, Marla Geha, Martínez-Delgado, D., Pol Massana, Sidney Mau, Medina, Gustavo E., Ricardo Munoz, Nadler, Ethan O., Knut Olsen, ADRIANO PIERES, Sakowska, Joanna D., Joshua Simon, Guy Stringfellow, Kathy Vivas, Walker, A. R., Risa Wechsler
Publikováno v:
INSPIRE-HEP
We report the discovery of six ultra-faint Milky Way satellites discovered through matched-filter searches conducted using Dark Energy Camera (DECam) data processed as part of the second data release of the DECam Local Volume Exploration (DELVE) surv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2aa0a07051145e802ba7fcfcc7fec65
Autor:
Rowen Glusman, Lauren Boegen, William Cerny, Ali Chapman, Isaiah Escapa, Richard G. Kron, Michael N. Martinez, Amanda Muratore, Audrey P. Scott
Publikováno v:
Publications of the Astronomical Society of the Pacific. 134:094503
In the second paper in this series, we improve on our previous demonstration of the ability of a commercially available graphic arts scanner and cost-effective analysis tools to produce scientifically useful scans of astronomical photographic plates.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34b3e000fcbdde90d77eb0e2aeb6fafb
https://doi.org/10.1088/1538-3873/ac87cf
https://doi.org/10.1088/1538-3873/ac87cf
Autor:
William Cerny
Publikováno v:
Discovery and Characterization of a New Ultra-Faint Stellar System with the DELVE Survey.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b28534f1f6e489f97666605257c1ae34
https://doi.org/10.2172/1648550
https://doi.org/10.2172/1648550
Autor:
William Cerny
Publikováno v:
New Perspectives 2020, Batavia, IL (United States), 20-21 Jul 2020.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59036eaf817efde35038903b46ea7e85
https://doi.org/10.2172/1647051
https://doi.org/10.2172/1647051