Expanding Bipolar X-ray Structure After the 2006 Eruption of RS Oph
| dc.contributor.author | Montez Jr., R. | |
| dc.contributor.author | Luna, G. J. M. | |
| dc.contributor.author | Mukai, Keisuke | |
| dc.contributor.author | Sokoloski, J. | |
| dc.contributor.author | Kastner, Joel | |
| dc.date.accessioned | 2021-11-10T17:11:31Z | |
| dc.date.available | 2021-11-10T17:11:31Z | |
| dc.date.issued | 2021-10-08 | |
| dc.description.abstract | We report on the detection and analysis of extended X-ray emission by the {\it Chandra} X-ray Observatory stemming from the 2006 eruption of the recurrent novae RS Oph. The extended emission was detected 1254 and 1927 days after the start of the 2006 eruption and is consistent with a bipolar flow oriented in the east-west direction of the sky with opening angles of approximately 70∘. The length of both lobes appeared to expand from 1.3 arcsec in 2009 to 2.0 arcsec in 2011, suggesting a projected expansion rate of 1.1±0.1 mas day⁻¹ and an expansion velocity of 4600 km s⁻¹ (D/2.4 kpc) in the plane of the sky. This expansion rate is consistent with previous estimates from optical and radio observations of material in a similar orientation. The X-ray emission does not show any evidence of cooling between 2009 and 2011, consistent with free expansion of the material. This discovery suggests that some mechanism collimates ejecta away from the equatorial plane, and that after that material passes through the red-giant wind, it expands freely into the cavity left by the 1985 eruption. We expect similar structures to arise from latest eruption and to expand into the cavity shaped by the 2006 eruption. | en_US |
| dc.description.sponsorship | Support for this work was provided by the National Aeronautics and Space Administration through Chandra Awards issued by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of the National Aeronautics Space Administration under contract NAS8-03060. RMJ acknowledges additional support from NASA contract NAS8-03060. GJML is a member of the CICCONICET (Argentina) and acknowledge support from grants ANPCYT-PICT 0901/2017. This research has made use of data obtained from the Chandra Data Archive and the Chandra Source Catalog, and software provided by the Chandra X-ray Center (CXC) in the application packages CIAO, ChIPS, and Sherpa. This research made use of Astropy, a community-developed core Python package for Astronomy (Astropy Collaboration et al. 2018, 2013). | en_US |
| dc.description.uri | https://arxiv.org/abs/2110.04315 | en_US |
| dc.format.extent | 12 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.genre | preprints | en_US |
| dc.identifier | doi:10.13016/m2zrmc-uogi | |
| dc.identifier.uri | http://hdl.handle.net/11603/23291 | |
| 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. | en_US |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | Expanding Bipolar X-ray Structure After the 2006 Eruption of RS Oph | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0001-8067-8732 | |
| dcterms.creator | https://orcid.org/0000-0002-3138-8250 |