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={Francisco Jim'enez-Esteban and Jos{\'e} Antonio Caballero and Ricardo Dorda and Paulo A. Miles-P'aez and Enrique 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… 

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 deg2. Here, we

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 potentially

J-PLUS: Discovery and characterisation of ultracool dwarfs using Virtual Observatory tools

Context. Ultracool dwarfs are objects with spectral types equal to or later than M7. Most of them have been discovered using wide-field imaging surveys. The Virtual Observatory has proven to be very

Discovery of new members of the nearby young stellar association in Cepheus

Context. 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

Stars and brown dwarfs in the σ Orionis cluster

Context. Only a few open clusters are as important for the study of stellar and substellar objects, and their formation and evolution, as the young σ Orionis cluster. However, a complete

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 dwarf

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 satellite

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 up

References

SHOWING 1-10 OF 139 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 that

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 amount

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 Automated

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.

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 the

AN ALL-SKY CATALOG OF BRIGHT M DWARFS

We present an all-sky catalog of M dwarf stars with apparent infrared magnitude J < 10. The 8889 stars are selected from the ongoing SUPERBLINK survey of stars with proper motion μ > 40 mas yr−1,

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 Orion

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 stellar

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 2MASS

A VOLUME-LIMITED SAMPLE OF 63 M7–M9.5 DWARFS. II. ACTIVITY, MAGNETISM, AND THE FADE OF THE ROTATION-DOMINATED DYNAMO

In a volume-limited sample of 63 ultracool dwarfs of spectral type M7–M9.5, we have obtained high-resolution spectroscopy with UVES at the Very Large Telescope and HIRES at Keck Observatory. In this
...