Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Antonio C Rodriguez"'
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
We report the discovery of ZTF J2020+5033, a high-mass brown dwarf (BD) transiting a low-mass star with an orbital period of 1.90 hours. Phase-resolved spectroscopy, optical and infrared light curves, and precise astrometry from Gaia allow us to cons
Externí odkaz:
https://doaj.org/article/bb5e5fc9dee34769af029eefd04c6af2
Autor:
Kareem El-Badry, Ken J. Shen, Vedant Chandra, Evan B. Bauer, Jim Fuller, Jay Strader, Laura Chomiuk, Rohan P. Naidu, Ilaria Caiazzo, Antonio C. Rodriguez, Pranav Nagarajan, Natsuko Yamaguchi, Zachary P. Vanderbosch, Benjamin R. Roulston, Jan van Roestel, Boris Gänsicke, Jiwon Jesse Han, Kevin B. Burdge, Alexei V. Filippenko, Thomas G. Brink, WeiKang Zheng
Publikováno v:
The Open Journal of Astrophysics, Vol 6 (2023)
We report a spectroscopic search for hypervelocity white dwarfs (WDs) that are runaways from Type Ia supernovae (SNe Ia) and related thermonuclear explosions. Candidates are selected from Gaia data with high tangential velocities and blue colors. We
Externí odkaz:
https://doaj.org/article/cfedf0b6e2dd453e82778a6c31af32e1
Autor:
Yashvi Sharma, Jesper Sollerman, Shrinivas R. Kulkarni, Takashi J. Moriya, Steve Schulze, Stan Barmentloo, Michael Fausnaugh, Avishay Gal-Yam, Anders Jerkstrand, Tomás Ahumada, Eric C. Bellm, Kaustav K. Das, Andrew Drake, Christoffer Fremling, David Hale, Saarah Hall, K. R. Hinds, Theophile Jegou du Laz, Viraj Karambelkar, Mansi M. Kasliwal, Frank J. Masci, Adam A. Miller, Guy Nir, Daniel A. Perley, Josiah N. Purdum, Yu-Jing Qin, Nabeel Rehemtulla, R. Michael Rich, Reed L. Riddle, Antonio C. Rodriguez, Sam Rose, Jean Somalwar, Jacob L. Wise, Avery Wold, Lin Yan, Yuhan Yao
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 199 (2024)
Multipeaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility. Here, we prese
Externí odkaz:
https://doaj.org/article/f7276a25b8c0403e8610026a5c48e899
Autor:
David R. Miller, Ilaria Caiazzo, Jeremy Heyl, Harvey B. Richer, Kareem El-Badry, Antonio C. Rodriguez, Zachary P. Vanderbosch, Jan van Roestel
Publikováno v:
The Astrophysical Journal Letters, Vol 956, Iss 2, p L41 (2023)
We searched the Gaia DR3 database for ultramassive white dwarfs with kinematics consistent with having escaped the nearby Hyades open cluster, identifying three such candidates. Two of these candidates have masses estimated from Gaia photometry of ap
Externí odkaz:
https://doaj.org/article/cca25499123b4e4ca3f006a6a05c5390
Autor:
Antonio C. Rodriguez, Ilkham Galiullin, Marat Gilfanov, Shrinivas R. Kulkarni, Irek Khamitov, Ilfan Bikmaev, Jan van Roestel, Lev Yungelson, Kareem El-Badry, Rashid Sunayev, Thomas A. Prince, Mikhail Buntov, Ilaria Caiazzo, Andrew Drake, Mark Gorbachev, Matthew J. Graham, Rustam Gumerov, Eldar Irtuganov, Russ R. Laher, Frank J. Masci, Pavel Medvedev, Josiah Purdum, Nail Sakhibullin, Alexander Sklyanov, Roger Smith, Paula Szkody, Zachary P. Vanderbosch
Publikováno v:
The Astrophysical Journal, Vol 954, Iss 1, p 63 (2023)
AM Canum Venaticorum (AM CVn) systems are ultracompact binaries where a white dwarf accretes from a helium-rich degenerate or semidegenerate donor. Some AM CVn systems will be among the loudest sources of gravitational waves for the upcoming Laser In
Externí odkaz:
https://doaj.org/article/30bbbb9bafa348229cb69047cc5d04e4
Autor:
Antonio C. Rodriguez, Shrinivas R. Kulkarni, Thomas A. Prince, Paula Szkody, Kevin B. Burdge, Ilaria Caiazzo, Jan van Roestel, Zachary P. Vanderbosch, Kareem El-Badry, Eric C. Bellm, Boris T. Gänsicke, Matthew J. Graham, Ashish A. Mahabal, Frank J. Masci, Przemek Mróz, Reed Riddle, Ben Rusholme
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 2, p 141 (2023)
Magnetic cataclysmic variables (CVs) are luminous Galactic X-ray sources, which have been difficult to find in purely optical surveys due to their lack of outburst behavior. The eROSITA telescope on board the Spektr-RG mission is conducting an all-sk
Externí odkaz:
https://doaj.org/article/76e601946326446384a15698bb5ecd18
Autor:
Kareem El-Badry, Hans-Walter Rix, Yvette Cendes, Antonio C Rodriguez, Charlie Conroy, Eliot Quataert, Keith Hawkins, Eleonora Zari, Melissa Hobson, Katelyn Breivik, Arne Rau, Edo Berger, Sahar Shahaf, Rhys Seeburger, Kevin B Burdge, David W Latham, Lars A Buchhave, Allyson Bieryla, Dolev Bashi, Tsevi Mazeh, Simchon Faigler
Publikováno v:
El-Badry, K, Rix, H-W, Cendes, Y, Rodriguez, A C, Conroy, C, Quataert, E, Hawkins, K, Zari, E, Hobson, M, Breivik, K, Rau, A, Berger, E, Shahaf, S, Seeburger, R, Burdge, K B, Latham, D W, Buchhave, L A, Bieryla, A, Bashi, D, Mazeh, T & Faigler, S 2023, ' A red giant orbiting a black hole ', Monthly Notices of the Royal Astronomical Society, vol. 521, no. 3, pp. 4323-4348 . https://doi.org/10.1093/mnras/stad799
We report spectroscopic and photometric follow-up of a dormant black hole (BH) candidate from Gaia DR3. The system, which we call Gaia BH2, contains a $\sim 1M_{\odot}$ red giant and a dark companion with mass $M_2 = 8.9\pm 0.3\,M_{\odot}$ that is ve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3c174c76902c351d7956a2ec1bedce9
https://doi.org/10.1093/mnras/stad799
https://doi.org/10.1093/mnras/stad799
Autor:
Kareem El-Badry, Charlie Conroy, Jim Fuller, Rocio Kiman, Jan van Roestel, Antonio C Rodriguez, Kevin B Burdge
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 517:4916-4939
We constrain the orbital period ($P_{\rm orb}$) distribution of low-mass detached main-sequence eclipsing binaries (EBs) with light curves from the Zwicky Transient Facility (ZTF), which provides a well-understood selection function and sensitivity t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a064b71d33b8db63122b4a842a00b033
https://doi.org/10.1093/mnras/stac2945
https://doi.org/10.1093/mnras/stac2945
Autor:
Lynne A. Hillenbrand, Howard Isaacson, Antonio C. Rodriguez, Michael Connelley, Bo Reipurth, Michael A. Kuhn, Tracy Beck, Diego Rodriguez Perez
Magakian et al. called attention to the current bright state of LkHα 225 South, a well-known highly embedded, intermediate-mass young stellar object that over the past two decades has brightened visually from >20 m to m . We present recent optical p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada8c7accb33668a0b95423cbeda8680
https://resolver.caltech.edu/CaltechAUTHORS:20211214-190100059
https://resolver.caltech.edu/CaltechAUTHORS:20211214-190100059
Autor:
Kareem El-Badry, Hans-Walter Rix, Eliot Quataert, Andrew W Howard, Howard Isaacson, Jim Fuller, Keith Hawkins, Katelyn Breivik, Kaze W K Wong, Antonio C Rodriguez, Charlie Conroy, Sahar Shahaf, Tsevi Mazeh, Frédéric Arenou, Kevin B Burdge, Dolev Bashi, Simchon Faigler, Daniel R Weisz, Rhys Seeburger, Silvia Almada Monter, Jennifer Wojno
We report discovery of a bright, nearby ($G = 13.8;\,\,d = 480\,\rm pc$) Sun-like star orbiting a dark object. We identified the system as a black hole candidate via its astrometric orbital solution from the Gaia mission. Radial velocities validated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ccb12d5d0ae2dbe8171cd675ac55ecd