Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Roediger, Joel"'
Autor:
Cantiello, Michele, Blakeslee, John P., Côté, Patrick, Raimondo, Gabriella, Cuillandre, Jean-Charles, Durrell, Patrick R., Gwyn, Stephen, Hazra, Nandini, Peng, Eric W., Roediger, Joel C., Sánchez-Janssen, Rúben, Kurzner, Max
The surface brightness fluctuation (SBF) method is a robust and efficient way of measuring distances to galaxies containing evolved stellar populations. Although many recent applications of the method have used space-based imaging, SBF remains a powe
Externí odkaz:
http://arxiv.org/abs/2403.16235
Autor:
Lim, Sungsoon, Peng, Eric W., Côté, Patrick, Ferrarese, Laura, Roediger, Joel C., Liu, Chengze, Spengler, Chelsea, Sola, Elisabeth, Duc, Pierre-Alain, Sales, Laura V., Blakeslee, John P., Cuillandre, Jean-Charles, Durrell, Patrick R., Emsellem, Eric, Gwyn, Stephen D. J., Lançon, Ariane, Marleau, Francine R., Mihos, J. Christopher, Müller, Oliver, Puzia, Thomas H., Sánchez-Janssen, Rubén
We study the size and structure of globular clusters (GC) systems of 118 early-type galaxies from the NGVS, MATLAS, and ACSVCS surveys. Fitting S\'ersic profiles, we investigate the relationship between effective radii of GC systems ($R_{e, \rm gc}$)
Externí odkaz:
http://arxiv.org/abs/2403.09926
Autor:
Wang, Kaixiang, Peng, Eric W., Liu, Chengze, Mihos, J. Christopher, Côté, Patrick, Ferrarese, Laura, Taylor, Matthew A., Blakeslee, John P., Cuillandre, Jean-Charles, Duc, Pierre-Alain, Guhathakurta, Puragra, Gwyn, Stephen, Ko, Youkyung, Lançon, Ariane, Lim, Sungsoon, MacArthur, Lauren A., Puzia, Thomas, Roediger, Joel, Sales, Laura V., Sánchez-Janssen, Rubén, Spengler, Chelsea, Toloba, Elisa, Zhang, Hongxin, Zhu, Mingcheng
Publikováno v:
Nature 623 (2023) 296-300
Systematic studies have revealed hundreds of ultra-compact dwarf galaxies (UCDs) in the nearby Universe. With half-light radii $r_h$ of approximately 10-100 parsecs and stellar masses $M_*$ $\approx$ $10^6-10^8$ solar masses, UCDs are among the dense
Externí odkaz:
http://arxiv.org/abs/2311.05448
Autor:
Toloba, Elisa, Sales, Laura V., Lim, Sungsoon, Peng, Eric W., Guhathakurta, Puragra, Roediger, Joel, Wang, Kaixiang, Mihos, J. Christopher, Cote, Patrick, Durrell, Patrick R., Ferrarese, Laura
We present Keck/DEIMOS spectroscopy of the first complete sample of ultra-diffuse galaxies (UDGs) in the Virgo cluster. We select all UDGs in Virgo that contain at least 10 globular cluster (GC) candidates and are more than $2.5\sigma$ outliers in sc
Externí odkaz:
http://arxiv.org/abs/2305.06369
Autor:
Sestito, Federico, Roediger, Joel, Navarro, Julio F., Jensen, Jaclyn, Venn, Kim A., Smith, Simon E. T., Hayes, Christian, McConnachie, Alan W.
The formation of "stellar halos" in dwarf galaxies have been discussed in terms of early mergers or Galactic tides, although fluctuations in the gravitational potential due to stellar feedback is also a possible candidate mechanism. A Bayesian algori
Externí odkaz:
http://arxiv.org/abs/2304.13048
Autor:
Smith, Simon E. T., Jensen, Jaclyn, Roediger, Joel, Sestito, Federico, Hayes, Christian R., McConnachie, Alan W., Cuillandre, Jean-Charles, Gwyn, Stephen, Magnier, Eugene, Chambers, Ken, Hammer, Francois, Hudson, Mike, Martin, Nicolas, Navarro, Julio, Scott, Douglas
We present the discovery of Bo\"otes V, a new ultra-faint dwarf galaxy candidate. This satellite is detected as a resolved overdensity of stars during an ongoing search for new Local Group dwarf galaxy candidates in the UNIONS photometric dataset. It
Externí odkaz:
http://arxiv.org/abs/2209.08242
Autor:
Luo, Yuanze, Rowlands, Kate, Alatalo, Katherine, Sazonova, Elizaveta, Abdurro'uf, Heckman, Timothy, Medling, Anne M., Deustua, Susana E., Nyland, Kristina, Lanz, Lauranne, Petric, Andreea O., Otter, Justin A., Aalto, Susanne, Dimassimo, Sabrina, French, K. Decker, Gallagher III, John S., Roediger, Joel C., Stepanoff, Sofia
We present a multiwavelength study of IC 860, a nearby post-starburst galaxy at the early stage of transitioning from blue and star-forming to red and quiescent. Optical images reveal a galaxy-wide, dusty outflow originating from a compact core. We f
Externí odkaz:
http://arxiv.org/abs/2208.08379
Autor:
Ouellette, Nathalie N. -Q., Courteau, Stéphane, Holtzman, Jon A., McDonald, Michael, Cappellari, Michele, Roediger, Joel C., Côté, Patrick, Dalcanton, Julianne J., Bontà, Elena Dalla, Ferrarese, Laura, Tully, R. Brent, Stone, Connor, Peng, Eric W.
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 514, Issue 2, August 2022, Pages 2356-2375
The ``Spectroscopy and H-band Imaging of Virgo cluster galaxies'' (SHIVir) survey is an optical and near-infrared survey which combines SDSS photometry, deep H-band photometry, and long-slit optical spectroscopy for 190 Virgo cluster galaxies (VCGs)
Externí odkaz:
http://arxiv.org/abs/2206.12431
Autor:
Taylor, Matthew A., Ko, Youkyung, Côté, Patrick, Ferrarese, Laura, Peng, Eric W., Zabludoff, Ann, Roediger, Joel, Sánchez-Janssen, Rubén, Hendel, David, Chilingarian, Igor, Liu, Chengze, Spengler, Chelsea, Zhang, Hongxin
We present the first results of an MMT/Hectospec campaign to measure the kinematics of globular clusters (GCs) around M49 -- the brightest galaxy in the Virgo galaxy cluster, which dominates the Virgo B subcluster. The data include kinematic tracers
Externí odkaz:
http://arxiv.org/abs/2105.04569
Autor:
Fedorets, Grigori, Micheli, Marco, Jedicke, Robert, Naidu, Shantanu P., Farnocchia, Davide, Granvik, Mikael, Moskovitz, Nicholas, Schwamb, Megan E., Weryk, Robert, Wierzchoś, Kacper, Christensen, Eric, Pruyne, Theodore, Bottke, William F., Ye, Quanzhi, Wainscoat, Richard, Devogèle, Maxime, Buchanan, Laura E., Djupvik, Anlaug Amanda, Faes, Daniel M., Föhring, Dora, Roediger, Joel, Seccull, Tom, Smith, Adam B.
We report on our detailed characterization of Earth's second known temporary natural satellite, or minimoon, asteroid 2020 CD3. An artificial origin can be ruled out based on its area-to-mass ratio and broadband photometry, which suggest that it is a
Externí odkaz:
http://arxiv.org/abs/2011.10380