Radio Emission from SN 2001gd in NGC 5033 | Zendy

Chris Stockdale | Zendy; K. W. Weiler | Zendy; Schuyler D. Van Dyk | Zendy; Marcos J. Montes | Zendy; N. Panagia | Zendy; R. A. Sramek | Zendy; M. A. P. Torres | Zendy; J. M. Marcaide | Zendy

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Radio Emission from SN 2001gd in NGC 5033

Author(s) -

Chris Stockdale,

K. W. Weiler,

Schuyler D. Van Dyk,

Marcos J. Montes,

N. Panagia,

R. A. Sramek,

M. A. P. Torres,

J. M. Marcaide

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/375737

Subject(s) - supernova , physics , astrophysics , radio telescope , wavelength , radio spectrum , astronomy , radio astronomy , telescope , radio frequency , optics , telecommunications , computer science

We present the results of monitoring the radio emission from the Type IIbsupernova SN 2001gd between 2002 February 8 and 2002 October 28. Most of thedata were obtained using the Very Large Array at the five wavelengths of$\lambda \lambda$1.3 cm (22.4 GHz), 2.0 cm (14.9 GHz), 3.6 cm (8.44 GHz), 6.2cm (4.86 GHz), and 21 cm (1.4 GHz). Observations were also made with GiantMeterwave Radio Telescope at $\lambda$21 cm (1.4 GHz). The object wasdiscovered optically well after maximum light, making any determination of theearly radio evolution difficult. However, subsequent observations indicate thatthe radio emission has evolved regularly in both time and frequency and is welldescribed by the SN shock/circumstellar medium interaction model.Comment: 16 pages 2 figures to appear in Astrophysical Journa

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