Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Kristine Spekkens"'
Autor:
Michael G. Jones, David J. Sand, Burçin Mutlu-Pakdil, Catherine E. Fielder, Denija Crnojević, Paul Bennet, Kristine Spekkens, Richard Donnerstein, Amandine Doliva-Dolinsky, Ananthan Karunakaran, Jay Strader, Dennis Zaritsky
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L37 (2024)
We report the discovery of Corvus A, a low-mass, gas-rich galaxy at a distance of approximately 3.5 Mpc, identified in DR10 of the Dark Energy Camera Legacy Imaging Survey during the initial phase of our ongoing SEmi-Automated Machine LEarning Search
Externí odkaz:
https://doaj.org/article/90ddd07ce7df48e3aed843eb9fd7d47e
Autor:
Michael G. Jones, Steven Janowiecki, Swapnaneel Dey, David J. Sand, Paul Bennet, Denija Crnojević, Catherine E. Fielder, Ananthan Karunakaran, Brian R. Kent, Nicolas Mazziotti, Burçin Mutlu-Pakdil, Kristine Spekkens
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 1, p L15 (2024)
We have discovered the stellar counterpart to the ALFALFA Virgo 7 cloud complex, which has been thought to be optically dark and nearly star-free since its discovery in 2007. This ∼190 kpc long chain of enormous atomic gas clouds ( M _H _i ∼ 10 ^
Externí odkaz:
https://doaj.org/article/d3cbdc41f200476a82d68264510b016a
The Faint Satellite System of NGC 253: Insights into Low-density Environments and No Satellite Plane
Autor:
Burçin Mutlu-Pakdil, David J. Sand, Denija Crnojević, Paul Bennet, Michael G. Jones, Kristine Spekkens, Ananthan Karunakaran, Dennis Zaritsky, Nelson Caldwell, Catherine E. Fielder, Puragra Guhathakurta, Anil C. Seth, Joshua D. Simon, Jay Strader, Elisa Toloba
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 188 (2024)
We have conducted a systematic search around the Milky Way (MW) analog NGC 253 ( D = 3.5 Mpc), as a part of the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS)—a Magellan+Megacam survey to identify dwarfs and other substructures in reso
Externí odkaz:
https://doaj.org/article/f4a6af2d04e84d7e9d808cf5139bda67
Autor:
Michael G. Jones, David J. Sand, Ananthan Karunakaran, Kristine Spekkens, Kyle A. Oman, Paul Bennet, Gurtina Besla, Denija Crnojević, Jean-Charles Cuillandre, Catherine E. Fielder, Stephen Gwyn, Burçin Mutlu-Pakdil
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 93 (2024)
We have imaged the entirety of eight (plus one partial) Milky Way (MW)–like satellite systems, a total of 42 (45) satellites, from the Satellites Around Galactic Analogs II catalog in both H α and H i with the Canada–France–Hawaii Telescope an
Externí odkaz:
https://doaj.org/article/6e287f3ab03b4238809a2fd74f7a6551
Autor:
Adam R. H. Stevens, Toby Brown, Benedikt Diemer, Annalisa Pillepich, Lars Hernquist, Dylan Nelson, Yannick M. Bahé, Alessandro Boselli, Timothy A. Davis, Pascal J. Elahi, Sara L. Ellison, María J. Jiménez-Donaire, Ian D. Roberts, Kristine Spekkens, Vicente Villanueva, Adam B. Watts, Christine D. Wilson, Nikki Zabel
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 2, p L19 (2023)
It has been shown in previous publications that the TNG100 simulation quantitatively reproduces the observed reduction in each of the total atomic and total molecular hydrogen gas for galaxies within massive halos, i.e., dense environments. In this L
Externí odkaz:
https://doaj.org/article/58f4f89d4a65412bbeb438d5cca125c7
Autor:
Michael G. Jones, Burçin Mutlu-Pakdil, David J. Sand, Richard Donnerstein, Denija Crnojević, Paul Bennet, Catherine E. Fielder, Ananthan Karunakaran, Kristine Spekkens, Jay Strader, Ryan Urquhart, Dennis Zaritsky
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 1, p L5 (2023)
We report the discovery of Pavo, a faint ( M _V = −10.0), star-forming, irregular, and extremely isolated dwarf galaxy at D ≈ 2 Mpc. Pavo was identified in Dark Energy Camera Legacy Survey imaging via a novel approach that combines low surface br
Externí odkaz:
https://doaj.org/article/31fb2bb928764f07913b4eb51ee1d96b
Autor:
Catherine E. Fielder, Michael G. Jones, David J. Sand, Paul Bennet, Denija Crnojević, Ananthan Karunakaran, Burçin Mutlu-Pakdil, Kristine Spekkens
Publikováno v:
The Astrophysical Journal Letters, Vol 954, Iss 2, p L39 (2023)
We investigate the ultradiffuse galaxy (UDG) UGC 9050-Dw1, which was selected because of its disturbed morphology as part of a larger sample of UDGs that display evidence for significant interactions. We use the Hubble Space Telescope’s Advanced Ca
Externí odkaz:
https://doaj.org/article/2b41429fb4454882af9a4e6ea6aa218f
Autor:
Michael G. Jones, Ananthan Karunakaran, Paul Bennet, David J. Sand, Kristine Spekkens, Burçin Mutlu-Pakdil, Denija Crnojević, Steven Janowiecki, Lukas Leisman, Catherine E. Fielder
Publikováno v:
The Astrophysical Journal Letters, Vol 942, Iss 1, p L5 (2022)
We present Hubble Space Telescope imaging of 14 gas-rich, low-surface-brightness galaxies in the field at distances of 25–36 Mpc, with mean effective radii and g -band central surface brightnesses of 1.9 kpc and 24.2 mag arcsec ^−2 . Nine meet th
Externí odkaz:
https://doaj.org/article/c97e871b90e04ccfb4466b9d0a613491
Autor:
Xuchen Lin, Jing Wang, Virginia Kilborn, Eric W. Peng, Luca Cortese, Alessandro Boselli, Ze-Zhong Liang, Bumhyun Lee, Dong Yang, Barbara Catinella, N. Deg, H. Dénes, Ahmed Elagali, P. Kamphuis, B. S. Koribalski, K. Lee-Waddell, Jonghwan Rhee, Li Shao, Kristine Spekkens, Lister Staveley-Smith, T. Westmeier, O. Ivy Wong, Kenji Bekki, Albert Bosma, Min Du, Luis C. Ho, Juan P. Madrid, Lourdes Verdes-Montenegro, Huiyuan Wang, Shun Wang
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 2, p 148 (2023)
Combining new H i data from a synergetic survey of Australian Square Kilometre Array Pathfinder (ASKAP) Widefield ASKAP L -band Legacy All-sky Blind surveY and Five-hundred-meter Aperture Spherical radio Telescope with the Arecibo Legacy Fast ALFA da
Externí odkaz:
https://doaj.org/article/845a40adfa934b89aaafdce4a2f4c889
Autor:
Toby Brown, Ian D. Roberts, Mallory Thorp, Sara L. Ellison, Nikki Zabel, Christine D. Wilson, Yannick M. Bahé, Dhruv Bisaria, Alberto D. Bolatto, Alessandro Boselli, Aeree Chung, Luca Cortese, Barbara Catinella, Timothy A. Davis, María J. Jiménez-Donaire, Claudia D. P. Lagos, Bumhyun Lee, Laura C. Parker, Rory Smith, Kristine Spekkens, Adam R. H. Stevens, Vicente Villanueva, Adam B. Watts
Publikováno v:
The Astrophysical Journal, Vol 956, Iss 1, p 37 (2023)
We study how environment regulates the star formation cycle of 33 Virgo Cluster satellite galaxies on 720 pc scales. We present the resolved star-forming main sequence for cluster galaxies, dividing the sample based on their global H i properties and
Externí odkaz:
https://doaj.org/article/9ea263c89db34bc391b0f9a4b8191584