CHARM2: An updated Catalog of High Angular Resolution Measurements | Astronomy & Astrophysics (A&A)

A&A 431, 773-777 (2005)

¹ European Southern Observatory, Karl-Schwarzschildstr. 2, 85748 Garching bei München, Germany e-mail: arichich@eso.org
² Dept. of Astronomy, Physics Faculty, Kazan State University, Kremlevskaya 18, Kazan 420008, Russia

Received: 21 September 2004
Accepted: 8 October 2004

Abstract

We present an update of the Catalog of High Angular Resolution Measurements (CHARM, Richichi & Percheron [CITE], A&A, 386, 492), which includes results available until July 2004. CHARM2 is a compilation of direct measurements by high angular resolution methods, as well as indirect estimates of stellar diameters. Its main goal is to provide a reference list of sources which can be used for calibration and verification observations with long-baseline optical and near-IR interferometers. Single and binary stars are included, as are complex objects from circumstellar shells to extragalactic sources. The present update provides an increase of almost a factor of two over the previous edition. Additionally, it includes several corrections and improvements, as well as a cross-check with the valuable public release observations of the ESO Very Large Telescope Interferometer (VLTI). A total of 8231 entries for 3238 unique sources are now present in CHARM2. This represents an increase of a factor of 3.4 and 2.0, respectively, over the contents of the previous version of CHARM.

Key words: techniques: high angular resolution / techniques: interferometric / catalogs / occultations / stars: binaries: general / stars: fundamental parameters

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.