Results 11 to 20 of about 5,324 (165)

Galactic archaeology: IMF and depletion in the "thin disk" [PDF]

, 2003
We determine the initial mass function (IMF) of the ``thin disk'' by means of a direct comparison between synthetic stellar samples (for different matching choices of IMF, star formation rate SFR and depletion) and a complete (volume-limited) sample of ...
Pagel, B., Schröder, K. -P.
core   +2 more sources

Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS) [PDF]

, 2013
The Subaru Prime Focus Spectrograph (PFS) is a massively-multiplexed fiber-fed optical and near-infrared 3-arm spectrograph (N_fiber=2400 ...
Aihara, Hiroaki, Arimoto, Nobuo, Bundy, Kevin, Chiba, Masashi, Cohen, Judith, Doré, Olivier, Ellis, Richard, Fèvre, Olivier Le, Graves, Genevieve, Greene, Jenny E., Gunn, James E., Heckman, Timothy, Hirata, Chris, Ho, Paul, Kneib, Jean-Paul, Lin, Lihwai, More, Surhud, Murayama, Hitoshi, Nagao, Tohru, Ouchi, Masami, Seiffert, Michael, Silverman, John, Sodré Jr, Laerte, Spergel, David N., Strauss, Michael A., Sugai, Hajime, Suto, Yasushi, Takada, Masahiro, Takami, Hideki, Wyse, Rosemary   +29 more
core   +2 more sources

Galactic Archaeology and Minimum Spanning Trees [PDF]

, 2015
Chemical tagging of stellar debris from disrupted open clusters and associations underpins the science cases for next-generation multi-object spectroscopic surveys.
Flynn, C.M.L., Gibson, Bradley Kenneth, macfarlane, B.A.   +2 more
core   +7 more sources

The SAGA so far: reading the history of the Galaxy with asteroseismology

EPJ Web of Conferences, 2015
Asteroseismology has the capability of delivering stellar properties which would otherwise be inaccessible, such as radii, masses and thus ages of stars.
Casagrande Luca, Aguirre Victor Silva, Serenelli Aldo M., Stello Dennis, Feltzing Sofia, Schlesinger Katharine J.   +5 more
doaj   +1 more source

The Milky Way Bulge Extra-tidal Star Survey: BH 261 (AL 3)

The Astronomical Journal, 2023
The Milky Way Bulge extra-tidal star survey is a spectroscopic survey with the goal of identifying stripped globular cluster stars from inner Galaxy clusters.
Andrea Kunder, Zdenek Prudil, Kevin R. Covey, Joanne Hughes, Meridith Joyce, Iulia T. Simion, Rebekah Kuss, Carlos Campos, Christian I. Johnson, Catherine A. Pilachowski, Kristen A. Larson, Andreas J. Koch-Hansen, Tommaso Marchetti, Michael R. Rich, Evan Butler, William I. Clarkson, Michael Rivet, Kathryn Devine, A. Katherina Vivas, Gabriel I. Perren, Mario Soto, Erika Silva   +21 more
doaj   +1 more source

SAGA: Stellar Abundances for Galactic Archaeology [PDF]

, 2012
A tutorial for the Stellar Abundances for Galactic Archaeology (SAGA) database is presented. This paper describes the outline of the database, reports the current status of the data compilation and known problems, and presents plans for future updates ...
Suda, Takuma
core   +1 more source

Scaling K2. VI. Reduced Small-planet Occurrence in High-galactic-amplitude Stars

The Astronomical Journal, 2023
In this study, we performed a homogeneous analysis of the planets around FGK dwarf stars observed by the Kepler and K2 missions, providing spectroscopic parameters for 310 K2 targets —including 239 Scaling K2 hosts—observed with Keck/HIRES.
Jon K. Zink, Kevin K. Hardegree-Ullman, Jessie L. Christiansen, Erik A. Petigura, Kiersten M. Boley, Sakhee Bhure, Malena Rice, Samuel W. Yee, Howard Isaacson, Rachel B. Fernandes, Andrew W. Howard, Sarah Blunt, Jack Lubin, Ashley Chontos, Daria Pidhorodetska, Mason G. MacDougall   +15 more
doaj   +1 more source

Chemical gradients in the Milky Way from the RAVE data. II. Giant stars [PDF]

, 2014
We provide new constraints on the chemo-dynamical models of the Milky Way by measuring the radial and vertical chemical gradients for the elements Mg, Al, Si, Ti, and Fe in the Galactic disc and the gradient variations as a function of the distance from ...
Bienaymé, O., Boeche, C., Chiappini, C., Freeman, K., Gibson, B. K., Gilmore, G., Grebel, E. K., Just, A., Kordopatis, G., Munari, U., Navarro, J. F., Parker, Q. A., Piffl, T., Reid, W., Seabroke, G. M., Sharma, S., Siebert, A., Siviero, A., Steinmetz, M., Watson, F. G., Wyse, R. F. G., Wyse, R. F.G., Zwitter, T.   +22 more
core   +2 more sources

Magellanic System Stars Identified in SMACS J0723.3-7327 James Webb Space Telescope Early Release Observations Images

The Astrophysical Journal, 2023
We identify 71 distant stars in James Webb Space Telescope/NIRCam early release observations (ERO) images of the field of galaxy cluster SMACS J0723.3-7327 (SMACS 0723).
Jake Summers, Rogier A. Windhorst, Seth H. Cohen, Rolf A. Jansen, Timothy Carleton, Patrick S. Kamieneski, Benne W. Holwerda, Christopher J. Conselice, Nathan J. Adams, Brenda L. Frye, Jose M. Diego, Christopher N. A. Willmer, Rafael Ortiz III, Cheng Cheng, Alex Pigarelli, Aaron Robotham, Jordan C. J. D’Silva, Scott Tompkins, Simon P. Driver, Haojing Yan, Dan Coe, Norman Grogin, Anton M. Koekemoer, Madeline A. Marshall, Nor Pirzkal, Russell E. Ryan Jr.   +25 more
doaj   +1 more source

Asteroseismology of red giants & galactic archaeology

, 2017
Red-giant stars are low- to intermediate-mass ($M \lesssim 10$~M$_{\odot}$) stars that have exhausted hydrogen in the core. These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies for several ...
A. Baglin, A. Datta, A. Helmi, A. Miglio, B. Mosser, B. Mosser, B. Mosser, B. Mosser, B. Paxton, C. Aerts, C. Allende Prieto, C. Chiappini, D. Kawata, D. Stello, D. Yong, D.R. Soderblom, E. Böhm-Vitense, E. Guggenberger, E.P. Bellinger, G.C. Angelou, G.R. Ricker, H. Kjeldsen, H. Lamb, H. Rauer, H.-W. Rix, I. Minchev, I. Minchev, J. Bland-Hawthorn, J. Bovy, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J. Kumamoto, J. Lattanzio, K. Belkacem, K. Freeman, K. Schwarzschild, L. Girardi, L. Lindegren, M. Bergemann, M. Gabriel, M. Martig, M. Martig, M. Ness, M. Ness, M. Ness, M. Tassoul, M.A.C. Perryman, M.R. Merrifield, N. Gai, N. Langer, O. Creevey, P. Gaulme, P. Goldreich, P. Goldreich, P. Jofré, P. Ledoux, R. Kippenhahn, R. Trampedach, R.K. Ulrich, S. Hekker, S. Hekker, S. Refsdal, S. Sharma, S.B. Howell, S.R. Loebman, T. Constantino, T. Kallinger, T.M. Brown, T.R. Bedding, T.R. White, V.M. Canuto, W.J. Borucki, W.J. Chaplin   +72 more
core   +1 more source