Millinovae: A New Class of Transient Supersoft X-ray Sources without a Classical Nova Eruption
I tiakina i:
| I whakaputaina i: | arXiv.org (Dec 7, 2024), p. n/a |
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| Kaituhi matua: | |
| Ētahi atu kaituhi: | , , , , , , , , , , , , , , , , , , , |
| I whakaputaina: |
Cornell University Library, arXiv.org
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| Ngā marau: | |
| Urunga tuihono: | Citation/Abstract Full text outside of ProQuest |
| Ngā Tūtohu: |
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!
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MARC
| LEADER | 00000nab a2200000uu 4500 | ||
|---|---|---|---|
| 001 | 3110540060 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2331-8422 | ||
| 024 | 7 | |a 10.3847/2041-8213/ad969b |2 doi | |
| 035 | |a 3110540060 | ||
| 045 | 0 | |b d20241207 | |
| 100 | 1 | |a Mróz, Przemek | |
| 245 | 1 | |a Millinovae: A New Class of Transient Supersoft X-ray Sources without a Classical Nova Eruption | |
| 260 | |b Cornell University Library, arXiv.org |c Dec 7, 2024 | ||
| 513 | |a Working Paper | ||
| 520 | 3 | |a Some accreting binary systems containing a white dwarf (such as classical novae or persistent supersoft sources) are seen to emit low-energy X-rays with temperatures of ~10^6 K and luminosities exceeding 10^35 erg/s. These X-rays are thought to originate from nuclear burning on the white dwarf surface, either caused by a thermonuclear runaway (classical novae) or a high mass-accretion rate that sustains steady nuclear burning (persistent sources). The discovery of transient supersoft X-rays from ASASSN-16oh challenged these ideas, as no clear signatures of mass ejection indicative of a classical nova eruption were detected, and the origin of these X-rays remains controversial. It was unclear whether this star was one of a kind or representative of a larger, as yet undiscovered, group. Here, we present the discovery of 29 stars located in the direction of the Magellanic Clouds exhibiting long-duration, symmetrical optical outbursts similar to that seen in ASASSN-16oh. We observed one of these objects during an optical outburst and found it to be emitting transient supersoft X-rays, while no signatures of mass ejection (indicative of a classical nova eruption) were detected. We therefore propose that these objects form a homogeneous group of transient supersoft X-ray sources, which we dub ``millinovae'' because their optical luminosities are approximately a thousand times fainter than those of ordinary classical novae. | |
| 653 | |a Nuclear fusion | ||
| 653 | |a Outbursts | ||
| 653 | |a X-rays | ||
| 653 | |a Transients (astronomy) | ||
| 653 | |a Novae | ||
| 653 | |a Dwarf novae | ||
| 653 | |a White dwarf stars | ||
| 653 | |a Signatures | ||
| 653 | |a Magellanic clouds | ||
| 653 | |a X ray sources | ||
| 653 | |a Burning rate | ||
| 700 | 1 | |a Król, Krzysztof | |
| 700 | 1 | |a Szegedi, Hélène | |
| 700 | 1 | |a Charles, Philip | |
| 700 | 1 | |a Page, Kim L | |
| 700 | 1 | |a Udalski, Andrzej | |
| 700 | 1 | |a Buckley, David A H | |
| 700 | 1 | |a Dewangan, Gulab | |
| 700 | 1 | |a Meintjes, Pieter | |
| 700 | 1 | |a Szymański, Michał K | |
| 700 | 1 | |a Soszyński, Igor | |
| 700 | 1 | |a Pietrukowicz, Paweł | |
| 700 | 1 | |a Kozłowski, Szymon | |
| 700 | 1 | |a Poleski, Radosław | |
| 700 | 1 | |a Skowron, Jan | |
| 700 | 1 | |a Ulaczyk, Krzysztof | |
| 700 | 1 | |a Gromadzki, Mariusz | |
| 700 | 1 | |a Rybicki, Krzysztof | |
| 700 | 1 | |a Iwanek, Patryk | |
| 700 | 1 | |a Wrona, Marcin | |
| 700 | 1 | |a Mróz, Mateusz J | |
| 773 | 0 | |t arXiv.org |g (Dec 7, 2024), p. n/a | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3110540060/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full text outside of ProQuest |u http://arxiv.org/abs/2409.17338 |