JHK photometry of Galactic center stars Virtual Observatory Resource

Authors
  1. Ruelas-Mayorga R.A.
  2. Teague P.F.
  3. Published by
    CDS
Abstract

We present K-counts and JHK detailed photometry for a number of stars with K<=+9.0 in three clear regions near the galactic centre. These regions are all located approximately at l~0.0 and at latitudes b~-3.5,-4.0 and 4.5 respectively. Their Cumulative Counts Functions (CCF's) are formed, and with the aid of an exponential disk model for the Galaxy they are separated into disk and bulge CCF. As for the case in Baade's Window (BW) (Ruelas-Mayorga & Teague, 1992A&AS...95..379R) the disk is dominant at bright magnitudes whereas the bulge dominates at the faint end of the CCF. The slope of the bulge CCF is steeper than that for the disk in all three cases corroborating the result obtained for BW. The two colour JHK diagram and the K vs J-K diagram for the three regions show that the stellar population in these areas is similar to that studied in BW by us and by Frogel & Whitford (1987ApJ...320..199F). An average value of E(J-K)~0.42mag for the reddening is obtained, which is somewhat larger than that found for BW (0.27). Finally it is shown that at K<=+9.0, the disk population may be accounted for by those sources with J-K<=+1.6 whereas the bulge population presents values for J-K in excess of +1.6.

Keywords
  1. stellar-populations
  2. infrared-photometry
  3. infrared-sources
Bibliographic source Bibcode
1993A&AS...97..587R
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/97/587
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+AS/97/587

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/97/587
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/97/587
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/97/587
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/97/587/table2?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/97/587/table2?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/97/587/table2?

History

1998-08-28T10:19:02Z
Resource record created
1998-08-28T10:19:02Z
Created
1998-08-28T10:19:41Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr