Classical Novae at Radio Wavelengths
| dc.contributor.author | Chomiuk, Laura | |
| dc.contributor.author | Linford, Justin D. | |
| dc.contributor.author | Aydi, Elias | |
| dc.contributor.author | Bannister, Keith W. | |
| dc.contributor.author | Mioduszewski, Amy J. | |
| dc.contributor.author | Mukai, Koji | |
| dc.contributor.author | Nelson, Thomas J. | |
| dc.contributor.author | Rupen, Michael P. | |
| dc.contributor.author | Ryder, Stuart D. | |
| dc.contributor.author | Sokoloski, Jennifer L. | |
| dc.contributor.author | Sokolovsky, Kirill V. | |
| dc.contributor.author | Strader, Jay | |
| dc.contributor.author | Filipovic, Miroslav D. | |
| dc.contributor.author | Finzell, Tom | |
| dc.contributor.author | Kawash, Adam | |
| dc.contributor.author | Kool, Erik C. | |
| dc.contributor.author | Metzger, Brian D. | |
| dc.contributor.author | Nyamai, Miriam M. | |
| dc.contributor.author | Ribeiro, Valerio A.R.M. | |
| dc.contributor.author | Roy, Nirupam | |
| dc.contributor.author | Urquhart, Ryan | |
| dc.contributor.author | Weston, Jennifer | |
| dc.date.accessioned | 2021-07-29T15:01:48Z | |
| dc.date.available | 2021-07-29T15:01:48Z | |
| dc.date.issued | 2021-07-13 | |
| dc.description.abstract | 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, t₂ = 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 non-thermal emission observed at earlier times. We identify high brightness temperature emission (T_B > 5x10⁴ K) as an indication of synchrotron emission in at least 9 (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 as tables and encourage use of these data by the broader community in multi-wavelength studies and modeling efforts. | en_US |
| dc.description.sponsorship | LC, EA, KVS, TF, and AK are grateful for support from NSF grants AST-1751874 and AST-1907790, NASA Fermi grant 80NSSC20K1535, and a Cottrell fellowship of the Research Corporation. JDL acknowledges support from NASA Fermi grant 80NSSC17K0511 and the NRAO ngVLA Community Studies Program. JLS and JHSW were supported by NSF grant AST1816100 and Heising-Simons Foundation grant #2017- 246. JS acknowledges support from the Packard Foundation. ECK acknowledges support from the G.R.E.A.T. research environment funded by Vetenskapsr˚adet, the Swedish Research Council, under project number 2016-06012, and support from The WennerGren Foundations. V.A.R.M.R. acknowledges financial support from the Funda¸c˜ao para a Ciˆencia e a Tecnologia (FCT) in the form of an exploratory project of reference IF/00498/2015/CP1302/CT0001, and from the Minist´erio da Ciˆencia, Tecnologia e Ensino Superior (MCTES) through national funds and when applicable co-funded EU funds under the project UIDB/EEA/50008/2020, and supported by Enabling Green E-science for the Square Kilometre Array Research Infrastructure (ENGAGE-SKA), POCI-01-0145- FEDER-022217, and PHOBOS, POCI-01-0145-FEDER029932, funded by Programa Operacional Competitividade e Internacionaliza¸c˜ao (COMPETE 2020) and FCT, Portugal. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. The Australia Telescope Compact Array is part of the Australia Telescope National Facility which is funded by the Australian Government for operation as a National Facility managed by CSIRO. We acknowledge the Gomeroi people as the traditional owners of the Observatory site. This research has made use of the International Variable Star Index (VSX) database, operated at AAVSO, Cambridge, Massachusetts, USA. We acknowledge with thanks the variable star observations from the AAVSO International Database contributed by observers worldwide and used in this research. This work has made use of data from the European Space Agency (ESA) mission Gaia (https://www.cosmos. esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC,https://www.cosmos. esa.int/web/gaia/dpac/consortium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. | en_US |
| dc.description.uri | https://arxiv.org/abs/2107.06251 | en_US |
| dc.format.extent | 44 pages | en_US |
| dc.genre | journal articles preprints | en_US |
| dc.identifier | doi:10.13016/m2aoup-6wss | |
| dc.identifier.uri | http://hdl.handle.net/11603/22211 | |
| dc.language.iso | en_US | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.relation.ispartof | UMBC Physics Department | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | Classical Novae at Radio Wavelengths | en_US |
| dc.type | Text | en_US |