Classical Novae at Radio Wavelengths

被引：23

作者：

Chomiuk, Laura ^{[1
]}

Linford, Justin D. ^{[2
]}

Aydi, Elias ^{[1
]}

Bannister, Keith W. ^{[3
]}

Krauss, Miriam, I ^{[4
]}

Mioduszewski, Amy J. ^{[2
]}

Mukai, Koji ^{[5
,6
,7
]}

Nelson, Thomas J. ^{[8
]}

Rupen, Michael P. ^{[9
]}

Ryder, Stuart D. ^{[10
,11
]}

Sokoloski, Jennifer L. ^{[12
]}

Sokolovsky, Kirill, V ^{[1
,13
]}

Strader, Jay ^{[1
]}

Filipovic, Miroslav D. ^{[14
]}

Finzell, Tom ^{[15
]}

Kawash, Adam ^{[1
]}

Kool, Erik C. ^{[16
]}

Metzger, Brian D. ^{[12
,17
]}

Nyamai, Miriam M. ^{[18
]}

Ribeiro, Valerio A. R. M. ^{[19
]}

Roy, Nirupam ^{[20
]}

Urquhart, Ryan ^{[1
]}

Weston, Jennifer ^{[21
]}

机构：

[1] Michigan State Univ, Ctr Data Intens & Time Domain Astron, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Natl Radio Astron Observ, POB O, Socon, NM 87801 USA

[3] CSIRO Astron & Space Sci, POB 76, Epping, NSW 1710, Australia

[4] Pasadena City Coll, 1570 E Colorado Blvd, Pasadena, CA 91106 USA

[5] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA

[6] NASA GSFC, CRESST, Greenbelt, MD 20771 USA

[7] NASA GSFC, Xray Astrophys Lab, Greenbelt, MD 20771 USA

[8] Univ Pittsburgh, Dept Phys & Astron, 3941 OHara St, Pittsburgh, PA 15260 USA

[9] Natl Res Council Canada, Herzberg Inst Astrophys, Penticton, BC V2A 6J9, Canada

[10] Macquarie Univ, Dept Phys & Astron, Macquarie Pk, NSW 2109, Australia

[11] Macquarie Univ, Res Ctr Astron Astrophys & Astrophoton, Sydney, NSW 2109, Australia

[12] Columbia Univ, Columbia Astrophys Lab, 538 W 120th St, New York, NY 10027 USA

[13] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Univ Skii Pr 13, Moscow 119992, Russia

[14] Western Sydney Univ, Locked Bag 1797, Penrith, NSW 2751, Australia

[15] Michigan State Univ, Dept Computat Math Sci & Engn, E Lansing, MI 48824 USA

[16] Stockholm Univ, Oskar Klein Ctr, Dept Astron, AlbaNova, S-10691 Stockholm, Sweden

[17] Flatiron Inst, Ctr Computat Astrophys, 162 W 5th Ave, New York, NY 10011 USA

[18] Univ Cape Town, Dept Astron, Private Bag X3, ZA-7701 Rondebosch, South Africa

[19] Inst Telecomunicacoes, Campus Univ Santiago, P-3810193 Aveiro, Portugal

[20] Indian Inst Sci, Dept Phys, Bangalore 560012, Karnataka, India

[21] Federated IT, 1201 Wilson Blvd,27th Floor, Arlington, VA 22209 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2021年 / 257卷 / 02期

基金：

瑞典研究理事会;

关键词：

EARLY SPECTRAL EVOLUTION; MERLIN OBSERVATIONS; MASS EJECTION; 2011; OUTBURST; CYGNI; 1992; EMISSION; CATALOG; CASSIOPEIAE; SPECTROSCOPY; PHOTOMETRY;

D O I：

10.3847/1538-4365/ac24ab

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present radio observations (1-40 GHz) for 36 classical novae, representing data from over five decades compiled from the literature, telescope archives, and our own programs. Our targets display a striking diversity in their optical parameters (e.g., spanning optical fading timescales, t (2) = 1-263 days), and we find a similar diversity in the radio light curves. Using a brightness temperature analysis, we find that radio emission from novae is a mixture of thermal and synchrotron emission, with nonthermal emission observed at earlier times. We identify high brightness temperature emission (T ( B ) > 5 x 10(4) K) as an indication of synchrotron emission in at least nine (25%) of the novae. We find a class of synchrotron-dominated novae with mildly evolved companions, exemplified by V5589 Sgr and V392 Per, that appear to be a bridge between classical novae with dwarf companions and symbiotic binaries with giant companions. Four of the novae in our sample have two distinct radio maxima (the first dominated by synchrotron and the later by thermal emission), and in four cases the early synchrotron peak is temporally coincident with a dramatic dip in the optical light curve, hinting at a common site for particle acceleration and dust formation. We publish the light curves in a machine-readable table and encourage the use of these data by the broader community in multiwavelength studies and modeling efforts.

引用

页数：26

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