Zobrazeno 1 - 10
of 3 755
pro vyhledávání: '"P Karunakaran"'
Autor:
Karunakaran, Ananthan, Motiwala, Khadeejah, Spekkens, Kristine, Zaritsky, Dennis, Donnerstein, Richard L., Dey, Arjun
We present the results from the neutral hydrogen (HI) follow-up survey of 378 optically-detected UDG candidates from the Systematically Measuring Ultra-Diffuse Galaxies (SMUDGes) survey using the Robert C. Byrd Green Bank Telescope (GBT). We detect H
Externí odkaz:
http://arxiv.org/abs/2408.07119
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 ($M_\mathrm{HI} \sim
Externí odkaz:
http://arxiv.org/abs/2402.14909
The Faint Satellite System of NGC 253: Insights into Low-Density Environments and No Satellite Plane
Autor:
Mutlu-Pakdil, Burçin, Sand, David J., Crnojević, Denija, Bennet, Paul, Jones, Michael G., Spekkens, Kristine, Karunakaran, Ananthan, Zaritsky, Dennis, Caldwell, Nelson, Fielder, Catherine E., Guhathakurta, Puragra, Seth, Anil C., Simon, Joshua D., Strader, Jay, Toloba, Elisa
We have conducted a systematic search around the Milky Way (MW) analog NGC 253 (D=3.5 Mpc), as a part of the Panoramic Imaging Survey of Centaurus and Sculptor (PISCeS) - a Magellan+Megacam survey to identify dwarfs and other substructures in resolve
Externí odkaz:
http://arxiv.org/abs/2401.14457
Autor:
Fielder, Catherine, Jones, Michael, Sand, David, Bennet, Paul, Crnojevic, Denija, Karunakaran, Ananthan, Mutlu-Pakdil, Burcin, Spekkens, Kristine
We present new follow-up observations of two ultra-diffuse galaxies (UDGs), part of a total sample of five chosen for their distorted morphologies, suggestive of tidal influence. Using Hubble Space Telescope Advanced Camera for Surveys F555W and F814
Externí odkaz:
http://arxiv.org/abs/2401.01931
Autor:
Jones, Michael G., Sand, David J., Karunakaran, Ananthan, Spekkens, Kristine, Oman, Kyle A., Bennet, Paul, Besla, Gurtina, Crnojevic, Denija, Cuillandre, Jean-Charles, Fielder, Catherine E., Gwyn, Stephen, Mutlu-Pakdil, Burcin
We have imaged the entirety of eight (plus one partial) Milky Way-like satellite systems, a total of 42 (45) satellites, from the Satellites Around Galactic Analogs (SAGA) II catalog in both H$\alpha$ and HI with the Canada-France-Hawaii Telescope an
Externí odkaz:
http://arxiv.org/abs/2311.02152
Autor:
Montes, Mireia, Trujillo, Ignacio, Karunakaran, Ananthan, Infante-Sainz, Raul, Spekkens, Kristine, Golini, Giulia, Beasley, Michael, Cebrian, Maria, Chamba, Nushkia, D'Onofrio, Mauro, Kelvin, Lee, Roman, Javier
Publikováno v:
A&A 681, A15 (2024)
Almost Dark Galaxies are objects that have eluded detection by traditional surveys such as the Sloan Digital Sky Survey (SDSS). The low surface brightness of these galaxies ($\mu_r$(0)$>26$ mag/arcsec^2), and hence their low surface stellar mass dens
Externí odkaz:
http://arxiv.org/abs/2310.12231
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:
For, B. -Q., Spekkens, K., Staveley-Smith, L., Bekki, K., Karunakaran, A., Catinella, B., Koribalski, B. S., Lee-Waddell, K., Madrid, J. P., Murugeshan, C., Rhee, J., Westmeier, T., Wong, O. I., Zaritsky, D., Donnerstein, R.
We present a pilot study of the atomic neutral hydrogen gas (HI) content of ultra-diffuse galaxy (UDG) candidates. In this paper, we use the pre-pilot Eridanus field data from the Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY) to search
Externí odkaz:
http://arxiv.org/abs/2309.11799
Autor:
Rhode, Katherine L., Smith, Nicholas J., Crnojevic, Denija, Sand, David J., Lambert, Ryan A., Vesperini, Enrico, Smith, Madison V., Janowiecki, Steven, Salzer, John J., Karunakaran, Ananthan, Spekkens, Kristine
We present results from wide-field imaging of the resolved stellar populations of the dwarf spheroidal galaxies Cassiopeia III (And XXXII) and Perseus I (And XXXIII), two satellites in the outer stellar halo of the Andromeda galaxy (M31). Our WIYN pO
Externí odkaz:
http://arxiv.org/abs/2309.01045