Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Fielder, Catherine E"'
Autor:
Jones, Michael G., Sand, David J., Mutlu-Pakdil, Burcin, Fielder, Catherine E., Crnojevic, Denija, Bennet, Paul, Spekkens, Kristine, Donnerstein, Richard, Doliva-Dolinsky, Amandine, Karunakaran, Ananthan, Strader, Jay, Zaritsky, Dennis
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:
http://arxiv.org/abs/2407.03393
Autor:
Jones, Michael G., Janowiecki, Steven, Dey, Swapnaneel, Sand, David J., Bennet, Paul, Crnojevic, Denija, Fielder, Catherine E., Karunakaran, Ananthan, Kent, Brian R., Mazziotti, Nicolas, Mutlu-Pakdil, Burcin, Spekkens, Kristine
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 ($M_\mathrm{HI} \sim
Externí odkaz:
http://arxiv.org/abs/2402.14909
The Faint Satellite System of NGC 253: Insights into Low-Density Environments and No Satellite Plane
Autor:
Mutlu-Pakdil, Burçin, Sand, David J., Crnojević, Denija, Bennet, Paul, Jones, Michael G., Spekkens, Kristine, Karunakaran, Ananthan, Zaritsky, Dennis, Caldwell, Nelson, Fielder, Catherine E., Guhathakurta, Puragra, Seth, Anil C., Simon, Joshua D., Strader, Jay, Toloba, Elisa
We have conducted a systematic search around the Milky Way (MW) analog NGC 253 (D=3.5 Mpc), as a part of the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) - a Magellan+Megacam survey to identify dwarfs and other substructures in resolve
Externí odkaz:
http://arxiv.org/abs/2401.14457
Autor:
Jones, Michael G., Sand, David J., Karunakaran, Ananthan, Spekkens, Kristine, Oman, Kyle A., Bennet, Paul, Besla, Gurtina, Crnojevic, Denija, Cuillandre, Jean-Charles, Fielder, Catherine E., Gwyn, Stephen, Mutlu-Pakdil, Burcin
We have imaged the entirety of eight (plus one partial) Milky Way-like satellite systems, a total of 42 (45) satellites, from the Satellites Around Galactic Analogs (SAGA) II catalog in both H$\alpha$ and HI with the Canada-France-Hawaii Telescope an
Externí odkaz:
http://arxiv.org/abs/2311.02152
Autor:
Jones, Michael G., Mutlu-Pakdil, Burcin, Sand, David J., Donnerstein, Richard, Crnojevic, Denija, Bennet, Paul, Fielder, Catherine E., Karunakaran, Ananthan, Spekkens, Kristine, Strader, Jay, Urquhart, Ryan, Zaritsky, Dennis
We report the discovery of Pavo, a faint ($M_V = -10.0$), star-forming, irregular, and extremely isolated dwarf galaxy at $D\approx2$ Mpc. Pavo was identified in Dark Energy Camera Legacy Survey imaging via a novel approach that combines low surface
Externí odkaz:
http://arxiv.org/abs/2310.01478
Autor:
Fielder, Catherine E., Jones, Michael G., Sand, David J., Bennet, Paul, Crnojevic, Denija, Karunakaran, Ananthan, Mutlu-Pakdil, Burcin, Spekkens, Kristine
Publikováno v:
ApJL, 954, L39 (2023)
We investigate the ultra-diffuse 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 Cam
Externí odkaz:
http://arxiv.org/abs/2306.06164
Autor:
Mezini, Lorena, Fielder, Catherine E., Zentner, Andrew R., Mao, Yao-Yuan, Wang, Kuan, Wu, Hao-Yi
Within the $\Lambda$CDM cosmology, dark matter haloes are comprised of both a smooth component and a population of smaller, gravitationally bound subhaloes. These components are often treated as a single halo when halo properties, such as density pro
Externí odkaz:
http://arxiv.org/abs/2304.13809
K-corrections, conversions between flux in observed bands to flux in rest-frame bands, are critical for comparing galaxies at various redshifts. These corrections often rely on fits to empirical or theoretical spectral energy distribution (SED) templ
Externí odkaz:
http://arxiv.org/abs/2212.03263
Autor:
Jones, Michael G., Karunakaran, Ananthan, Bennet, Paul, Sand, David J., Spekkens, Kristine, Mutlu-Pakdil, Burcin, Crnojevic, Denija, Janowiecki, Steven, Leisman, Lukas, Fielder, Catherine E.
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 the
Externí odkaz:
http://arxiv.org/abs/2211.00651
Autor:
Bonidie, Victoria, Court, Travis, Daher, Christine Mazzola, Fielder, Catherine E., Badenes, Carles, Newman, Jeffrey, Moe, Maxwell, Kratter, Kaitlin M., Walker, Matthew G., Majewski, Steven R., Hayes, Christian R., Hasselquist, Sten, Stassun, Keivan, Kounkel, Marina, Dixon, Don, Stringfellow, Guy S., Carlberg, Joleen, Anguiano, Borja, De Lee, Nathan, Troup, Nicholas
We use time-resolved spectra from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) to examine the distribution of radial velocity (RV) variations in 249 stars identified as members of the Sagittarius (Sgr) dwarf spheroidal (dSph) g
Externí odkaz:
http://arxiv.org/abs/2204.09750