The Outbursting YSOs Catalogue (OYCAT)
Por:
Peña, CC, Lee, JE, Herczeg, G, Johnstone, D, Abrahám, P, Antoniucci, S, Audard, M, Ashraf, M, Baek, G, Garatti, AC, Carvalho, A, Cieza, L, Miera, FCSD, Eislöffel, J, Froebrich, D, Giannini, T, Green, J, Ghosh, A, Guo, Z, Hillenbrand, L, Hodapp, K, Jheonn, H, Jose, J, Kim, YJ, Kóspál, A, Lee, HG, Lucas, PW, Magakian, T, Nagy, Z, Naylor, T, Ninan, JP, Peneva, S, Reipurth, B, Scholz, A, Semkov, E, Sicilia-Aguilar, A, Singh, K, Siwak, M, Stecklum, B, Szabó, ZM, Wolf, V, Yoon, SY
Publicada:
1 jul 2025
Resumen:
Young stellar objects (YSOs) can display unpredictable and high-amplitude rises in brightness that can last from a few months to possibly over 100 years. These types of outbursts are explained by large changes in the mass accretion rate from the disk onto the central star. This type of variability has given support to a model of star formation (episodic accretion) where stars would spend most of their lifetimes accreting at low rates, and gain most of their mass through these short-lived accretion outbursts. The universality of episodic accretion, as well as its potential impact on stellar and planetary formation are still under debate. Improvement on the statistics of the members of the eruptive class is needed to better understand the episodic accretion phenomenon and its universality across different mass regimes and environments. In this paper we collect published information on the spectroscopic and photometric characteristics of 174 YSOs confirmed to belong to the eruptive variable class. We classify these objects into five different sub-classes (we find 49 FUor, 20 FUor-like, 16 EX Lupi-type, 81 Peculiar/V1647 Ori-like/MNors and 8 Periodic YSOs). The classification follows what has been done previously in the literature, and it is not an attempt to redefine these classes. In addition, we present a list of 18 embedded, and 6 massive YSOs, as additional categories of eruptive variable YSOs. Due to the complexity and/or faintness of these systems, it is hard to place them into the original classification scheme of this class of variable YSOs. Finally, we present a separate list of 355 candidate eruptive variable YSOs, which either lack spectroscopic information or the available spectroscopic data is not sufficient for an unambiguous classification. The online catalogue of confirmed and candidate eruptive YSOs will be maintained and updated in the future to serve as an important reference for the star formation community.
Filiaciones:
Peña, CC:
Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
Seoul Natl Univ, Res Inst Basic Sci, Seoul 08826, South Korea
Lee, JE:
Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
Herczeg, G:
Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
Peking Univ, Dept Astron, Beijing 100871, Peoples R China
Johnstone, D:
NRC Herzberg Astron & Astrophys, Victoria, BC V9E 2E7, Canada
Univ Victoria, Dept Phys & Astron, Victoria, BC V8P 5C2, Canada
Abrahám, P:
HUN REN Res Ctr Astron & Earth Sci, MTA Ctr Excellence, Konkoly Observ, H-1121 Budapest, Hungary
Eotvos Lorand Univ, Inst Phys & Astron, H-1117 Budapest, Hungary
Univ Vienna, Inst Astron IfA, Turkenschanzstr 17, A-1180 Vienna, Austria
Antoniucci, S:
INAF Osservatorio Astron Roma, I-00078 Monte Porzio Catone, Italy
Audard, M:
Univ Geneva, Dept Astron, CH-1290 Versoix, Switzerland
Ashraf, M:
Indian Inst Sci Educ & Res Tirupati, Dept Phys, Tirupati 517619, Andhra Pradesh, India
Baek, G:
Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
Seoul Natl Univ, Res Inst Basic Sci, Seoul 08826, South Korea
Garatti, AC:
INAF Osservatorio Astron Capodimonte, Sal Moiariello 16, I-80131 Naples, Italy
Carvalho, A:
CALTECH, Dept Astron, MC 249-17, Pasadena, CA 91125 USA
Cieza, L:
Univ Diego Portales, Fac Ingn & Ciencias, Inst Estudios Astrofis, Santiago 8370191, Chile
Millennium Nucleus Young Exoplanets & their Moons, Santiago, Chile
Miera, FCSD:
HUN REN Res Ctr Astron & Earth Sci, MTA Ctr Excellence, Konkoly Observ, H-1121 Budapest, Hungary
Univ Toulouse, Inst Rech Astrophys & Planetol, UT3 PS, OMP,CNRS, F-31028 Toulouse 4, France
Eislöffel, J:
Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany
Froebrich, D:
Univ Kent, Ctr Astrophys & Planetary Sci, Sch Phys & Astron, Canterbury CT2 7NH, England
Giannini, T:
INAF Osservatorio Astron Roma, I-00078 Monte Porzio Catone, Italy
Green, J:
Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA
Ghosh, A:
Univ Nacl Autonoma Mexico, Inst Radioastron & Astrofis, Morelia 58089, Michoacan, Mexico
Guo, Z:
Univ Valparaiso, Inst Fis & Astron, Casilla 5030, Valparaiso, Chile
Nucleo Milenio Formac Planetaria NPF, Casilla 5030, Valparaiso, Chile
Univ Tecn Feder Santa Maria, Dept Fis, Valparaiso, Chile
Hillenbrand, L:
CALTECH, Dept Astron, MC 249-17, Pasadena, CA 91125 USA
Hodapp, K:
Univ Hawaii Manoa, Inst Astron, Hilo, HI 96720 USA
Jheonn, H:
Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
Jose, J:
Indian Inst Sci Educ & Res Tirupati, Dept Phys, Tirupati 517619, Andhra Pradesh, India
Kim, YJ:
Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea
Kóspál, A:
HUN REN Res Ctr Astron & Earth Sci, MTA Ctr Excellence, Konkoly Observ, H-1121 Budapest, Hungary
Max Planck Inst Astron, D-69117 Heidelberg, Germany
Lee, HG:
Korea Astron & Space Sci Inst, Daejeon 34055, South Korea
Lucas, PW:
Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, England
Magakian, T:
Byurakan Observ NAS Armenia, Byurakan 0213, Aragatsotn, Armenia
Nagy, Z:
HUN REN Res Ctr Astron & Earth Sci, MTA Ctr Excellence, Konkoly Observ, H-1121 Budapest, Hungary
Naylor, T:
Univ Exeter, Dept Phys & Astron, Exeter EX4 4QL, England
Ninan, JP:
Tata Inst Fundamental Res, Dept Astron & Astrophys, Mumbai 400005, India
Peneva, S:
Bulgarian Acad Sci, Inst Astron, Sofia 1784, Bulgaria
Bulgarian Acad Sci, Natl Astron Observ, Sofia 1784, Bulgaria
Reipurth, B:
Planetary Sci Inst, Tucson, AZ 85719 USA
Scholz, A:
Univ St Andrews, Sch Phys & Astron, Scottish Univ Phys Alliance SUPA, St Andrews KY16 9SS, Scotland
Semkov, E:
Bulgarian Acad Sci, Inst Astron, Sofia 1784, Bulgaria
Bulgarian Acad Sci, Natl Astron Observ, Sofia 1784, Bulgaria
Sicilia-Aguilar, A:
Univ Dundee, Sch Sci & Engn, SUPA, Dundee DD1 4HN, Scotland
Singh, K:
Tata Inst Fundamental Res, Dept Astron & Astrophys, Mumbai 400005, India
Siwak, M:
Univ Natl Educ Commiss, Mt Suhora Astron Observ, PL-30084 Krakow, Poland
Stecklum, B:
Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany
Szabó, ZM:
HUN REN Res Ctr Astron & Earth Sci, MTA Ctr Excellence, Konkoly Observ, H-1121 Budapest, Hungary
Univ St Andrews, Sch Phys & Astron, Scottish Univ Phys Alliance SUPA, St Andrews KY16 9SS, Scotland
Max Planck Inst Radioastron, D-53121 Bonn, Germany
Wolf, V:
Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany
Yoon, SY:
Korea Astron & Space Sci Inst, Daejeon 34055, South Korea
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