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相关论文: Radio Emission from SN 2001gd in NGC 5033

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We present the results of observations of the radio emission from Supernova 2001gd in NGC 5033 from 2002 February 8 through 2006 September 25. The data were obtained using the Very Large Array at wavelengths of 1.3 cm (22.4 GHz), 2 cm (14.9…

We present the results of detailed monitoring of the radio emission from the Type Ic supernova SN 1994I from 3 days after optical discovery on 1994 March 31 until eight years later at age 2927 days on 2002 April 05. The data were mainly…

宇宙学与河外天体物理 · 物理学 2015-05-30 Kurt W. Weiler , Nino Panagia , Christopher Stockdale , Michael Rupen , Richard A. Sramek , Christopher L. Williams

Supernova 2001ig in NGC 7424 has been observed with the Australia Telescope Compact Array at ~2 week intervals since its discovery, making this the best-studied Type IIb radio supernova since SN 1993J. We present radio light curves for…

天体物理学 · 物理学 2007-05-23 S. D. Ryder , E. Sadler , R. Subrahmanyan , K. W. Weiler , N. Panagia , C. Stockdale

We report on 8.4 GHz VLBI observations of SN2001gd in the spiral galaxy NGC5033 made on 26 June 2002 and 8 April 2003. Our data nominally suggests a relatively strong deceleration for the expansion of SN2001gd, but we cannot dismiss the…

We present new continuum VLA observations of the nearby Sy 1.5 galaxy NGC 5033, made at 4.9 and 8.4 GHz on 8 April 2003. Combined with VLA archival observations at 1.4 and 4.9 GHz made on 7 August 1993, 29 August 1999, and 31 October 1999,…

天体物理学 · 物理学 2019-08-19 Miguel A. Perez-Torres , Antonio Alberdi

Using the Very Large Array, we have detected radio emission from the site of SN 1970G in the Sc galaxy M101. These observations are 31 years after the supernova event, making SN 1970G the longest monitored radio supernova. With flux…

天体物理学 · 物理学 2015-06-24 Christopher J. Stockdale , W. M. Goss , John J. Cowan , R. A. Sramek

We present the results of an eight-year long monitoring of the radio emission from the Luminous Infrared Galaxy (LIRG) NGC 7469, using 8.4 GHz Very Large Array (VLA) observations at 0.3'' resolution. Our monitoring shows that the late time…

宇宙学与河外天体物理 · 物理学 2015-05-13 M. A. Perez-Torres , A. Alberdi , L. Colina , J. M. Torrelles , N. Panagia , A. Wilson , E. Kankare , S. Mattila

We present extensive radio monitoring of a type IIb supernova (SN IIb), SN 2016gkg during $t \sim$ 8$-$1429 days post explosion at frequencies $\nu \sim$ 0.33$-$25 GHz. The detailed radio light curves and spectra are broadly consistent with…

高能天体物理现象 · 物理学 2022-08-17 A. J. Nayana , Poonam Chandra , Anoop Krishna , G. C. Anupama

We report on phase-referenced VLBI radio observations of the Type IIb supernova 2011dh, at times t = 83 days and 179 days after the explosion and at frequencies, respectively, of 22.2 and 8.4 GHz. We detected SN 2011dh at both epochs. At…

高能天体物理现象 · 物理学 2015-06-03 M. F. Bietenholz , A. Brunthaler , A. M. Soderberg , M. Krauss , N. Bartel , L. Chomiuk , M. P. Rupen

We report the discovery and monitoring of radio emission from the Type Ic SN 2002ap ranging in frequency from 1.43 to 22.5 GHz, and in time from 4 to 50 days after the SN explosion. As in most other radio SNe, the radio spectrum of SN…

天体物理学 · 物理学 2015-06-24 E. Berger , S. R. Kulkarni , R. A. Chevalier

We present our observations of the radio emission from supernova (SN) 1993J, in M 81 (NGC 3031), made with the VLA, from 90 to 0.7 cm, as well as numerous measurements from other telescopes. The combined data set constitutes probably the…

SN 2001em is a peculiar supernova, originally classified as Type Ib/c. About two years after the SN it was detected in the radio, showing a rising radio flux with an optically thin spectral slope, and it also displayed a large X-ray…

天体物理学 · 物理学 2011-02-11 F. K. Schinzel , G. B. Taylor , C. J. Stockdale , J. Granot , E. Ramirez-Ruiz

We report four years of radio and X-ray monitoring of the Type IIn supernova SN 2006jd at radio wavelengths with the Very Large Array, Giant Metrewave Radio Telescope and Expanded Very Large Array; at X-ray wavelengths with {\em Chandra},…

We present radio and X-ray observations of the nearby Type IIb Supernova 2013df in NGC4414 from 10 to 250 days after the explosion. The radio emission showed a peculiar soft-to-hard spectral evolution. We present a model in which inverse…

We report extensive radio and X-ray observations of SN 2003bg whose spectroscopic evolution shows a transition from a broad-lined Type Ic to a hydrogen-rich Type II and later to a typical hydrogen-poor Type Ibc. We show that the…

天体物理学 · 物理学 2008-11-26 A. M. Soderberg , R. A. Chevalier , S. R. Kulkarni , D. A. Frail

We present late time, low frequency observations of SN 2011dh made using the Giant Metrewave Radio Telescope (GMRT). Our observations at $325\ \rm MHz$, $610\ \rm MHz$ and $1280\ \rm MHz$ conducted between $93-421\ \rm days$ after the…

高能天体物理现象 · 物理学 2016-03-23 Naveen Yadav , Alak Ray , Sayan Chakraborti

Using the Very Large Array (VLA), we have detected radio emission from the site of SN 1961V in the Sc galaxy NGC 1058. With a peak flux density of 0.063 +/- 0.008 mJy/beam at 6 cm and 0.147 +/- 0.026 mJy/beam at 18 cm, the source is…

天体物理学 · 物理学 2009-11-06 Christopher J. Stockdale , Michael P. Rupen , John J. Cowan , You-Hua Chu , Steven S. Jones

We present the results of radio observations, taken primarily with the Very Large Array, of Supernovae 1993J, 2001gd, 2001em, 2002hh, 2004dj, and 2004et. We have fit a parameterized model to the multi-frequency observations of each…

We present VLA radio continuum measurements of SN1993J in M81 at the frequencies of 0.32 (P-band), 1.3 and 1.7 (L-band), 4.9 (C-band), 8.5 (X-band), and 14.9 (U-band) GHz carried out on December 17 and 21, 2000, about 2820 days after the…

天体物理学 · 物理学 2008-11-26 M. A. Perez-Torres , A. Alberdi , J. M. Marcaide

We present radio observations and modelling of one of the nearest and brightest Type IIP supernova SN\,2004dj exploded in the galaxy NGC 2403 at a distance of $\sim$ 3.5 Mpc. Our observations span a wide frequency and temporal range of 0.24…

高能天体物理现象 · 物理学 2018-08-02 Nayana A J , Poonam Chandra , Alak K. Ray
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