The IC 133 Water Vapor Maser in the Galaxy M33: A Geometric Distance
- 10 November 2004
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 615 (2) , 702-719
- https://doi.org/10.1086/424731
Abstract
We report on the results of a 14 year long VLBI study of proper motions in the IC133 H2O maser source in the galaxy M33. The method of Ordered Motion Parallax was used to model the 3-dimensional structure and dynamics of IC133 and obtain a distance estimate, 800 +/- 180 kpc. Our technique for determining the distance to M33 is independent of calibrations common to other distance indicators, such as Cepheid Period-Luminosity relations, and therefore provides an important check for previous distance determinations.Comment: Accepted for publication in the Astrophysical JournaKeywords
All Related Versions
This publication has 33 references indexed in Scilit:
- Giant Molecular Clouds in M33. I. BIMA All‐Disk SurveyThe Astrophysical Journal Supplement Series, 2003
- Fundamental Properties and Distances of Large Magellanic Cloud Eclipsing Binaries. IV. HV 5936The Astrophysical Journal, 2003
- Final Results from theHubble Space TelescopeKey Project to Measure the Hubble ConstantThe Astrophysical Journal, 2001
- The Cepheid period-luminosity zero-point from Hipparcos trigonometrical parallaxesMonthly Notices of the Royal Astronomical Society, 1997
- New Cepheid distances to nearby galaxies based on BVRI CCD photometry. II - The local group galaxy M33The Astrophysical Journal, 1991
- First images of water vapor masers in the galaxy M33The Astrophysical Journal, 1990
- The Cepheids in M33: Hubble's measurements compared to CCD dataThe Astronomical Journal, 1987
- Proper motions and distances of H2O maser sources. II - W51 MAINThe Astrophysical Journal, 1981
- Proper motions and distances of H2O maser sources. I - The outflow in Orion-KLThe Astrophysical Journal, 1981
- The extragalactic distance scale. II - Distances of the nearest galaxies from primary indicatorsThe Astrophysical Journal, 1978