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200 papers

A new version of the Optical Characteristics of Astrometric Radio Sources (OCARS) catalog is presented. This compiled catalog includes radio sources observed in different VLBI programs and experiments that result in source position…

Instrumentation and Methods for Astrophysics · Physics 2018-11-29 Zinovy Malkin

We collected radial velocities of more than 50.000 individual stars in 156 Galactic globular clusters (GGC) and matched them with HST photometry and Gaia DR2 proper motions. This allowed us to derive the GGC's mean proper motions and space…

Astrophysics of Galaxies · Physics 2020-03-18 Michael Hilker , Holger Baumgardt , Antonio Sollima , Andrea Bellini

We present a high quality multiwavelength (from 0.3 to 8.0 micron) catalog of the large and deep area in the GOODS Southern Field covered by the deep near-IR observations obtained with the ESO VLT. The catalog is entirely based on public…

Stellar rotation, a key factor influencing stellar structure and evolution, also drives magnetic activity, which is manifested as spots or flares on stellar surface. Here, we present a collection of 18 443 rotating variables located toward…

We present a collection of 65,981 Mira-type variable stars found in the Optical Gravitational Lensing Experiment (OGLE) project database. Two-thirds of our sample (40,356 objects) are located in the Galactic bulge fields, whereas 25,625…

We introduce Galaxy Zoo Evo, a labeled dataset for building and evaluating foundation models on images of galaxies. GZ Evo includes 104M crowdsourced labels for 823k images from four telescopes. Each image is labeled with a series of…

We present OGLE-III Photometric Maps of the Galactic disk fields observed during the OGLE-III campaigns for low luminosity transiting objects that led to the discovery of the first transiting exoplanets. The maps contain precise, calibrated…

Solar and Stellar Astrophysics · Physics 2011-01-11 M. K. Szymański , A. Udalski , I. Soszyński , M. Kubiak , G. Pietrzyński , R. Poleski , Ł. Wyrzykowski , K. Ulaczyk

We present the first catalogue of known variable stars in open cluster regions and with up to two times the given cluster radius. This gives basic information about the distribution of variable stars in cluster fields for the complete sky.…

Solar and Stellar Astrophysics · Physics 2015-06-12 Miloslav Zejda , Ernst Paunzen , Bernhard Baumann , Zdenek Mikulasek , Jiri Liska

We consider the problem of determining the Galaxy's gravitational potential from a star catalogue. We show that orbit-based approaches to this problem suffer from unacceptable numerical noise deriving from the use of only a finite number of…

Astrophysics of Galaxies · Physics 2015-06-15 Paul J. McMillan , James J. Binney

[ABRIDGED] AIMS. MONOS is collecting information and studying O-type spectroscopic binaries with delta > -20 deg. In this 1st paper we describe the sample and provide spectral classifications and additional information for objects with…

We present the first edition of a catalog of variable stars from OGLE-II Galactic Bulge data covering 3 years: 1997-1999. Typically 200-300 I band data points are available in 49 fields between -11 and 11 degrees in galactic longitude,…

Astrophysics · Physics 2007-05-23 P. R. Wozniak , A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , I. Soszynski , K. Zebrun

As part of the LAMOST medium-resolution spectroscopic survey, the LAMOST-MRS-O is a non-time domain survey that aims to perform medium-resolution spectral observations for member stars in the open cluster area. This survey plans to obtain…

Astrophysics of Galaxies · Physics 2025-01-16 Xi Zhang , Chengzhi Liu , Jing Zhong , Li Chen , Ali Luo , Jian-Rong Shi , Chao Liu , JianJun Chen , Haotong Zhang , Jinliang Hou

We present the first edition of a catalog of variable stars found in the Magellanic Clouds using OGLE-II data obtained during four years: 1997-2000. The catalog covers about 7 square degrees of the sky - 21 fields in the Large Magellanic…

We have detected 13 new runaway-star candidates of spectral type O combining the TGAS (Tycho-Gaia Astrometric Solution) proper motions from Gaia Data Release 1 (DR1) and the sample from GOSSS (Galactic O-Star Spectroscopic Survey). We have…

Astrophysics of Galaxies · Physics 2017-11-15 J. Maíz Apellániz , R. H. Barbá , S. Simón-Díaz , I. Negueruela , E. Trigueros Páez

In preparation for the upcoming all-sky data releases of the Gaia mission, we compiled a catalog of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases. The catalog contains 5613 unique sources…

We report the discovery of additional 22 RV Tau stars located in the OGLE-II and OGLE-III fields toward the Galactic bulge, increasing to 357 objects the OGLE-III catalog of type II Cepheids in the Galactic center. Four of the newly…

Solar and Stellar Astrophysics · Physics 2013-04-11 I. Soszynski , A. Udalski , P. Pietrukowicz , M. K. Szymanski , M. Kubiak , G. Pietrzynski , L. Wyrzykowski , K. Ulaczyk , R. Poleski , S. Kozlowski

We present results from a systematic search for strong gravitational lenses in the GOODS ACS data. The search technique involves creating a sample of likely lensing galaxies, which we define as massive early-type galaxies in a redshift…

Astrophysics · Physics 2009-11-10 C. D. Fassnacht , L. A. Moustakas , S. Casertano , H. C. Ferguson , R. A. Lucas , Y. Park

The Gaia-ESO Survey (GES) is a public, high-resolution spectroscopic survey with FLAMES@VLT. GES targeted in particular a large sample of open clusters (OCs) of all ages. The different kinds of OCs are useful to reach the main science…

We present the first galaxy scale lens catalog from the second Red-Sequence Cluster Survey. The catalog contains 60 lensing system candidates comprised of Luminous Red Galaxy (LRG) lenses at 0.2 < z < 0.5 surrounded by blue arcs or apparent…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 T. Anguita , L. F. Barrientos , M. D. Gladders , C. Faure , H. K. C Yee , D. G. Gilbank

The compact association Cygnus OB2 is known to contain a large population of massive stars, but its total mass is currently a matter of debate. While recent surveys have uncovered large numbers of OB stars in the area around Cyg OB2,…

Astrophysics · Physics 2015-05-13 Ignacio Negueruela , Amparo Marco , Artemio Herrero , Simon Clark