|
Indian Institute of Astrophysics >
IIAP Publications >
IIAP Publications >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/5239
|
| Title: | Microwave emission from late-type dwarf stars UV Ceti and YZ Canis Minoris |
| Authors: | Kundu, M. R
Shevgaonkar, R. K |
| Keywords: | Radiation Mechanisms
Stars-Individual
Stars: Late-Type
Stars: Radio Radiation |
| Issue Date: | 15-Oct-1985 |
| Publisher: | The University of Chicago Press |
| Citation: | The Astrophysical Journal, Vol. 297, pp. 644 - 648 |
| Abstract: | Simultaneous high-resolution observations of two late-type dwarf stars, UV Cet and YZ CMi, at 6 and 20 cm are presented. These observations put sufficient constraints on existing interpretations to conclude that the quiescent microwave emission from these stars is due to gyrosynchrotron radiation of nonthermal electrons having a power-law energy distribution. From the lifetime of 1 hr of the nonthermal particles against radiation and collision losses, a magnetic field of a few thousand gauss on the photosphere of these stars is estimated. The observations indicate that the ambient density in the coronae of YZ CMi is an order of magnitude higher than that of UV Cet. |
| Description: | Open Access |
| URI: | http://hdl.handle.net/2248/5239 |
| Alternative Location: | http://adsabs.harvard.edu/abs/1985ApJ...297..644K |
| Copyright: | © The American Astronomical Society |
| Appears in Collections: | IIAP Publications
|
Items in IIAP Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
|
