HST photometry in NGC 6822 Virtual Observatory Resource

Authors

1. Fusco F.
2. Buonanno R.
3. Bono G.
4. Cassisi S.
5. Monelli M.
6. Pietrinferni A.

Published by

CDS

Abstract

On the basis of a new photometric analysis of the Local Group dwarf irregular galaxy NCG 6822 based on observations obtained with the Advanced Camera for Surveys onboard the Hubble Space Telescope, we have obtained a new estimate of the extinction of two fields located in the southeast region of the galaxy. Because of significant differences in the distance estimates to NGC 6822 available in literature, we decided to provide an independent determination of the distance to this galaxy based on an updated and self-consistent theoretical calibration of the tip of the red giant branch brightness. As a result we newly determined the distance to NGC 6822 to be equal to (m-M)_0_=23.54+/-0.05, and compared our measurement with the most recent determinations of this distance.

Keywords

1. galaxies
2. photometry
3. hst-photometry
4. stellar-distance

Bibliographic source Bibcode

2012A&A...548A.129F

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/548/A129

IVOA Identifier IVOID

ivo://CDS.VizieR/J/A+A/548/A129

Document Object Identifer DOI

doi:10.26093/cds/vizier.35480129

Access

Web browser access HTML

http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/548/A129
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/548/A129
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/548/A129

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+A/548/A129/ngc6822?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/548/A129/ngc6822?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/548/A129/ngc6822?