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| DOI | 10.3847/1538-4357/ABE53D | ||||
| Año | 2021 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
The unprecedented sky coverage and observing cadence of the All-Sky Automated Survey for SuperNovae (ASAS-SN) has resulted in the discovery and continued monitoring of a large sample of Galactic transients. The vast majority of these are accretion-powered dwarf nova outbursts in cataclysmic variable systems, but a small subset are thermonuclear-powered classical novae. Despite improved monitoring of the Galaxy for novae from ASAS-SN and other surveys, the observed Galactic nova rate is still lower than predictions. One way classical novae could be missed is if they are confused with the much larger population of dwarf novae. Here, we examine the properties of 1617 dwarf nova outbursts detected by ASAS-SN and compare them to classical novae. We find that the mean classical nova brightens by similar to 11 mag during outburst, while the mean dwarf nova brightens by only similar to 5 mag, with the outburst amplitude distributions overlapping by roughly 15%. For the first time, we show that the amplitude of an outburst and the time it takes to decline by two magnitudes from maximum are positively correlated for dwarf nova outbursts. For classical novae, we find that these quantities are negatively correlated, but only weakly, compared to the strong anticorrelation of these quantities found in some previous work. We show that, even if located at large distances, only a small number of putative dwarf novae could be misclassified as classical novae, suggesting that there is minimal confusion between these populations. Future spectroscopic follow-up of these candidates can show whether any are indeed classical novae.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Kawash, A. | Hombre |
Michigan State Univ - Estados Unidos
Michigan State University - Estados Unidos |
| 2 | Chomiuk, L. | Mujer |
Michigan State Univ - Estados Unidos
Michigan State University - Estados Unidos |
| 3 | Strader, J. | - |
Michigan State Univ - Estados Unidos
Michigan State University - Estados Unidos |
| 4 | Aydi, Elias | Hombre |
Michigan State Univ - Estados Unidos
Michigan State University - Estados Unidos |
| 5 | Sokolovsky, K. | Hombre |
Michigan State Univ - Estados Unidos
Moscow MV Lomonosov State Univ - Rusia Michigan State University - Estados Unidos Lomonosov Moscow State University - Rusia |
| 6 | Jayasinghe, T. | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 7 | Kochanek, C. S. | Hombre |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 8 | Schmeer, Patrick | Hombre |
Bischmisheim - Alemania
|
| 9 | Stanek, K. Z. | - |
OHIO STATE UNIV - Estados Unidos
|
| 10 | Mukai, Koji | Hombre |
NASA - Estados Unidos
UNIV MARYLAND - Estados Unidos NASA Goddard Space Flight Center - Estados Unidos University of Maryland, Baltimore County (UMBC) - Estados Unidos |
| 11 | Shappee, Benjamin | Hombre |
Univ Hawaii Manoa - Estados Unidos
University Hawaii Institute for Astronomy - Estados Unidos |
| 12 | Way, Z. | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 13 | Basinger, C. | - |
OHIO STATE UNIV - Estados Unidos
The Ohio State University - Estados Unidos |
| 14 | Holoien, Thomas W. -S. | Hombre |
Observatorio Las Campanas - Estados Unidos
Carnegie Observ - Estados Unidos |
| 15 | PRIETO-KATUNARIC, JOSE LUIS | Hombre |
Universidad Diego Portales - Chile
Instituto Milenio de Astrofísica - Chile |
| Fuente |
|---|
| National Science Foundation |
| NSF |
| Gordon and Betty Moore Foundation |
| Mt. Cuba Astronomical Foundation |
| Center for Cosmology and AstroParticle Physics at the Ohio State University |
| Villum Foundation |
| Packard Foundation |
| Chinese Academy of Sciences South America Center for Astronomy (CAS- SACA) |
| Cottrell fellowship of the Research Corporation |
| Agradecimiento |
|---|
| We thank the Las Cumbres Observatory and its staff for its continuing support of the ASAS-SN project. ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, and NSF grants AST-1515927 and AST-1908570. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics at the Ohio State University, the Chinese Academy of Sciences South America Center for Astronomy (CAS- SACA), and the Villum Foundation. |
| We thank the Las Cumbres Observatory and its staff for its continuing support of the ASAS-SN project. ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to the Ohio State University, and NSF grants AST-1515927 and AST-1908570. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, the Center for Cosmology and AstroParticle Physics at the Ohio State University, the Chinese Academy of Sciences South America Center for Astronomy (CAS- SACA), and the Villum Foundation. |