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Astron. Astrophys. 346, 878-882 (1999)


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Radio emission from RASS sources south of Taurus-Auriga

A. Magazzù 1,2, G. Umana 3 and E.L. Martín 4

1 Centro Galileo Galilei, Apartado 565, E-38700 Santa Cruz de La Palma, Spain
2 Osservatorio Astrofisico di Catania, Città Universitaria, I-95125 Catania, Italy
3 Istituto di Radioastronomia del CNR, VLBI Station, CP 141, I-96017 Noto (SR), Italy
4 University of California, 601 Campbell Hall, 94720 Berkeley, USA

Received 31 August 1998 / Accepted 1 March 1999

Abstract

We present a 8.4 GHz VLA survey of 50 optical counterparts to 46 ROSAT All-Sky survey (RASS) X-ray sources south of the Taurus-Auriga star-forming region. This survey detected 3 sources with a sensitivity limit of [FORMULA]. Merging our sample with other radio observations of sources in and around Taurus-Auriga, we find scarce radio emission among RASS sources south of the Taurus-Auriga molecular clouds. Our data support the evidence that these sources are older than weak-lined T Tauri stars, most of them probably being close to the ZAMS.

Key words: stars: pre-main sequence – radio continuum: stars – X-rays: stars

Send offprint requests to: A. Magazzù (address 1)

Correspondence to: magazzu@tng.iac.es

© European Southern Observatory (ESO) 1999

Online publication: June 17, 1999

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