Zobrazeno 1 - 10
of 288
pro vyhledávání: '"Sesar, Branimir"'
Publikováno v:
2020ApJS..248...28T
The GPS1 catalog was released in 2017. It delivered precise proper motions for around 350 million sources across three-fourths of the sky down to a magnitude of $r\sim20$\,mag. In this study, we present GPS1+ the extension GPS1 catalog down to $r\sim
Externí odkaz:
http://arxiv.org/abs/2004.12641
Autor:
Fardal, Mark A., van der Marel, Roeland P., Law, David R., Sohn, Sangmo Tony, Sesar, Branimir, Hernitschek, Nina, Rix, Hans-Walter
Recent maps of the halo using RR Lyrae from Pan-STARRS1 have clearly depicted the spatial structure of the Sagittarius stream. These maps show the leading and trailing stream apocenters differ in galactocentric radius by a factor of two, and also res
Externí odkaz:
http://arxiv.org/abs/1804.04995
Autor:
Bergemann, Maria, Sesar, Branimir, Cohen, Judith G., Serenelli, Aldo M., Sheffield, Allyson, Li, Ting S., Casagrande, Luca, Johnston, Kathryn V., Laporte, Chervin F. P., Price-Whelan, Adrian M., Schoenrich, Ralph, Gould, Andrew
Our Galaxy is thought to have undergone an active evolutionary history dominated by star formation, the accretion of cold gas, and, in particular, mergers up to 10 gigayear ago. The stellar halo reveals rich fossil evidence of these interactions in t
Externí odkaz:
http://arxiv.org/abs/1803.00563
Autor:
Hernitschek, Nina, Cohen, Judith G., Rix, Hans-Walter, Sesar, Branimir, Martin, Nicolas F., Magnier, Eugene, Wainscoat, Richard, Kaiser, Nick, Tonry, John L., Kudritzki, Rolf-Peter, Hodapp, Klaus, Chambers, Ken, Flewelling, Heather, Burgett, William
We characterize the spatial density of the Pan-STARRS1 (PS1) sample of RR Lyrae stars, to study the properties of the old Galactic stellar halo as traced by RRab stars. This sample of 44,403 sources spans Galactocentric radii of $0.55 \; \mathrm{kpc}
Externí odkaz:
http://arxiv.org/abs/1801.10260
Autor:
Sheffield, Allyson A., Price-Whelan, Adrian M., Tzanidakis, Anastasios, Johnston, Kathryn V., Laporte, Chervin, Sesar, Branimir
The Monoceros Ring (also known as the Galactic Anticenter Stellar Structure) and A13 are stellar overdensities at estimated heliocentric distances of $d \sim 11$ kpc and 15 kpc observed at low Galactic latitudes towards the anticenter of our Galaxy.
Externí odkaz:
http://arxiv.org/abs/1801.01171
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 472, Issue 4, 21 December 2017, Pages 4870-4877
We present an improved photometric error analysis for the 7,100 CRTS (Catalina Real-Time Transient Survey) optical light curves for quasars from the SDSS (Sloan Digital Sky Survey) Stripe 82 catalogue. The SDSS imaging survey has provided a time-reso
Externí odkaz:
http://arxiv.org/abs/1712.01848
Autor:
Hendel, David, Scowcroft, Victoria, Johnston, Kathryn V., Fardal, Mark A., van der Marel, Roeland P., Sohn, Sangmo Tony, Price-Whelan, Adrian M., Beaton, Rachael L., Besla, Gurtina, Bono, Giuseppe, Cioni, Maria-Rosa L., Clementini, Gisella, Cohen, Judith G., Fabrizio, Michele, Freedman, Wendy L., Garofalo, Alessia, Grillmair, Carl J., Kallivayalil, Nitya, Kollmeier, Juna A., Law, David R., Madore, Barry F., Majewski, Steven R., Marengo, Massimo, Monson, Andrew J., Neeley, Jillian R., Nidever, David L., Pietrzyński, Grzegorz, Seibert, Mark, Sesar, Branimir, Smith, Horace A., Soszyński, Igor, Thompson, Ian B., Udalski, Andrezej
Stellar tidal streams provide an opportunity to study the motion and structure of the disrupting galaxy as well as the gravitational potential of its host. Streams around the Milky Way are especially promising as phase space positions of individual s
Externí odkaz:
http://arxiv.org/abs/1711.04663
Autor:
Hernitschek, Nina, Sesar, Branimir, Rix, Hans-Walter, Belokurov, Vasily, Martinez-Delgado, David, Martin, Nicolas F., Kaiser, Nick, Hodapp, Klaus, Chambers, Kenneth C., Wainscoat, Richard, Magnier, Eugene, Kudritzki, Rolf-Peter, Metcalfe, Nigel, Draper, Peter W.
We present a comprehensive and precise description of the Sagittarius (Sgr) stellar stream's 3D geometry as traced by its old stellar population. This analysis draws on the sample of ${\sim}44,000$ RR Lyrae (RRab) stars from the Pan-STARRS1 (PS1) 3$\
Externí odkaz:
http://arxiv.org/abs/1710.09436
Autor:
Cook, David O., Kasliwal, Mansi M., Van Sistine, Angela, Kaplan, David L., Sutter, Jessica S., Kupfer, Thomas, Shupe, David L., Laher, Russ R., Masci, Frank J., Dale, Daniel A., Sesar, Branimir, Brady, Patrick R., Yan, Lin, Ofek, Eran O., Reitze, David H., Kulkarni, Shrinivas R.
We present the Census of the Local Universe (CLU) narrow-band survey to search for emission-line (\ha) galaxies. CLU-\ha~has imaged $\approx$3$\pi$ of the sky (26,470~deg$^2$) with 4 narrow-band filters that probe a distance out to 200~Mpc. We have o
Externí odkaz:
http://arxiv.org/abs/1710.05016
Autor:
Cohen, Judith, Sesar, Branimir, Bahnolzer, Sophianna, He, Kevin, Kulkarni, Shrinivas R., Prince, Thomas A., Bellm, Eric, Laher, Russ R.
RR Lyr stars are ideal massless tracers that can be used to study the total mass and dark matter content of the outer halo of the Milky Way. This is because they are easy to find in the light curve databases of large stellar surveys and their distanc
Externí odkaz:
http://arxiv.org/abs/1710.01276