Identification of red high proper-motion objects in Tycho-2 and 2MASS catalogues using Virtual Observatory tools

@article{JimenezEsteban2011IdentificationOR,
  title={Identification of red high proper-motion objects in Tycho-2 and 2MASS catalogues using Virtual Observatory tools},
  author={F. Jim'enez-Esteban and J. Caballero and R. Dorda and P. Miles-P'aez and E. Solano},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={525}
}
Aims. With available Virtual Observatory tools, we looked for new M dwarfs in the solar neighbourhood and M giants with high tangential velocities. Methods. From an all-sky cross-match between the optical Tycho-2 and the near-infrared 2MASS catalogues, we selected objects with proper motions μ> 50 mas yr −1 and very red VT − Ks colours. For the most interesting targets, we collected multi-wavelength photometry, constructed spectral energy distributions, estimated effective temperatures and… Expand

Figures and Tables from this paper

Search for bright nearby M dwarfs with Virtual Observatory tools
Using Virtual Observatory tools, we cross-matched the Carlsberg Meridian 14 and the 2MASS Point Source catalogs to select candidate nearby bright M dwarfs distributed over ~ 25,000 deg^2. Here, weExpand
Stars and brown dwarfs in the σ Orionis cluster - III. OSIRIS/GTC low-resolution spectroscopy of variable sources
Context. Although many studies have been performed so far, there are still dozens of low-mass stars and brown dwarfs in the young sigma Orionis open cluster without detailed spectroscopicExpand
CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS
Context. CARMENES is a stabilised, high-resolution, double-channel spectrograph at the 3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs with potentiallyExpand
J-PLUS: Discovery and characterisation of ultracool dwarfs using Virtual Observatory tools.
Ultracool dwarfs (UCDs) are objects with spectral types equal or later than M7. Most of them have been discovered using wide-field imaging surveys. The Virtual Observatory (VO) has proven to be ofExpand
Discovery of new members of the nearby young stellar association in Cepheus
Young field stars are hardly distinguishable from older ones because their space motion rapidly mixes them with the stellar population of the Galactic plane. Nevertheless, a careful target selectionExpand
The Gaia ultracool dwarf sample – I. Known L and T dwarfs and the first Gaia data release
We identify and investigate known ultracool stars and brown dwarfs that are being observed or indirectly constrained by the Gaia mission. These objects will be the core of the Gaia ultracool dwarfExpand
Early optical follow-up of the nearby active star DG CVn during its 2014 superflare
DG CVn is a binary system in which one of the components is an M type dwarf ultra fast rotator, only three of which are known in the solar neighborhood. Observations of DG CVn by the Swift satelliteExpand
Random Forest identification of the thin disc, thick disc, and halo Gaia-DR2 white dwarf population
Gaia-DR2 has provided an unprecedented number of white dwarf candidates of our Galaxy. In particular, it is estimated that Gaia-DR2 has observed nearly 400,000 of these objects and close to 18,000 upExpand

References

SHOWING 1-10 OF 138 REFERENCES
A selection of hot subluminous stars in the GALEX survey – I. Correlation with the Guide Star Catalog
We assembled a catalogue of bright, hot subdwarf and white dwarf stars extracted from a joint ultraviolet, optical and infrared source list. The selection is secured using colour criteria thatExpand
A search for new hot subdwarf stars by means of virtual observatory tools II
Context. Recent massive sky surveys in different bandwidths are providing new opportunities to modern astronomy. The Virtual Observatory (VO) provides the adequate framework to handle the huge amountExpand
Finding the most variable stars in the Orion Belt with the All Sky Automated Survey
We look for high-amplitude variable young stars in the open clusters and associations of the Orion Belt. We use public data from the ASAS-3 Photometric V -band Catalogue of the All Sky AutomatedExpand
Searches for OH masers in the circumstellar envelopes of red giant irregular variable stars
Irregular variables of type Lb share many characteristics with asymptotic giant branch (AGB) stars such as Miras and semiregulars (SRs). Despite their large number, irregulars are poorly understood.Expand
Stars and brown dwarfs in the σ Orionis cluster - II. A proper motion study
Aims. I attempt to fully understand the origin of the stellar and substellar populations in the young σ Orionis open cluster, which is a benchmark for star-forming studies. Because of the very lowExpand
Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data: Revisiting the concept of superclusters
The availability of the Hipparcos Catalogue has triggered many kinematic and dynamical studies of the solar neighbourhood. Nevertheless, those studies generally lacked the third component of theExpand
The Dusty AGB Star RS CrB: First Mid-Infrared Interferometric Observations with the Keck Telescopes
We report interferometric observations of the semiregular variable star RS CrB, a red giant with strong silicate emission features. The data were among the first long-baseline mid-infrared stellarExpand
Young stars and brown dwarfs surrounding Alnilam (eps Ori) and Mintaka (del Ori)
Aims: We look for new regions for the search of substellar objects. Methods: Two circular areas, 45 arcmin-radius each, centred on the young massive star systems Alnilam and Mintaka in the OrionExpand
Red variables in the OGLE-II data base – I. Pulsations and period–luminosity relations below the tip of the red giant branch of the Large Magellanic Cloud
We present period‐luminosity relations for more than 23 000 red giants in the Large Magellanic Cloud observed by the OGLE-II microlensing project. The OGLE period values were combined with the 2MASSExpand
THE FIRST HUNDRED BROWN DWARFS DISCOVERED BY THE WIDE-FIELD INFRARED SURVEY EXPLORER (WISE)
We present ground-based spectroscopic verification of 6 Y dwarfs (see also Cushing et al.), 89 T dwarfs, 8 L dwarfs, and 1 M dwarf identified by the Wide-field Infrared Survey Explorer (WISE). EightyExpand
...
1
2
3
4
5
...