相关论文: Gaia18aen: First symbiotic star discovered by Gaia

DeGaPe 35: Amateur discovery of a new southern symbiotic star

In this work, we present the discovery and characterization of a new southern S-type symbiotic star, DeGaPe 35. We have obtained the low-resolution spectroscopic observations and supplemented them with photometry from Gaia DR3 and other…

太阳与恒星天体物理 · 物理学 2022-09-30 Thomas Petit , Jaroslav Merc , Rudolf Gális , Stéphane Charbonnel , Thierry Demange , Richard Galli , Olivier Garde , Pascal Le Dû , Lionel Mulato

Gaia-GIC-1: An Evolving Catastrophic Planetesimal Collision Candidate

We report the discovery of the optical dipper and low-luminosity infrared stellar transient Gaia20ehk (hereafter, Gaia-GIC-1), which is currently undergoing high-amplitude variability due to transiting dusty material. In this work, we…

地球与行星天体物理 · 物理学 2026-03-12 Anastasios Tzanidakis , James R. A. Davenport

Gaia 20eae: A newly discovered episodically accreting young star

The Gaia Alert System issued an alert on 2020 August 28, on Gaia 20eae when its light curve showed a $\sim$4.25 magnitude outburst. We present multi-wavelength photometric and spectroscopic follow-up observations of this source since 2020…

太阳与恒星天体物理 · 物理学 2022-02-23 Arpan Ghosh , Saurabh Sharma , Joe. P. Ninan , Devendra K. Ojha , Bhuwan C. Bhatt , Shubham Kanodia , Suvrath Mahadevan , Gudmundur Stefansson , R. K. Yadav , A. S. Gour , Rakesh Pandey , Tirthendu Sinha , Neelam Panwar , John P. Wisniewski , Caleb I. Canas , Andrea S. J. Lin , Arpita Roy , Fred Hearty , Lawrence Ramsey , Paul Robertson , Christian Schwab

Gaia 19cwm -- an eclipsing dwarf nova of WZ Sge type with a magnetic white dwarf

The spectral and photometric studies of the cataclysmic variable Gaia 19cwm (or ZTF19aamkwxk) have been performed. Based on the analysis of long-term variability, it is concluded that the object belongs to WZ Sge type stars. The light…

太阳与恒星天体物理 · 物理学 2025-02-21 A. I. Kolbin , T. A. Fatkhullin , E. P. Pavlenko , M. V. Suslikov , V. Yu. Kochkina , N. V. Borisov , A. S. Vinokurov , A. A. Sosnovskij , S. S. Panarin

Gaia Photometric Science Alerts

Since July 2014, the Gaia mission has been engaged in a high-spatial-resolution, time-resolved, precise, accurate astrometric, and photometric survey of the entire sky. Aims: We present the Gaia Science Alerts project, which has been in…

天体物理仪器与方法 · 物理学 2021-08-18 S. T. Hodgkin , D. L. Harrison , E. Breedt , T. Wevers , G. Rixon , A. Delgado , A. Yoldas , Z. Kostrzewa-Rutkowska , Ł. Wyrzykowski , M. van Leeuwen , N. Blagorodnova , H. Campbell , D. Eappachen , M. Fraser , N. Ihanec , S. E. Koposov , K. Kruszyńska , G. Marton , K. A. Rybicki , A. G. A. Brown , P. W. Burgess , G. Busso , S. Cowell , F. De Angeli , C. Diener , D. W. Evans , G. Gilmore , G. Holland , P. G. Jonker , F. van Leeuwen , F. Mignard , P. J. Osborne , J. Portell , T. Prusti , P. J. Richards , M. Riello , G. M. Seabroke , N. A. Walton , Péter Ábrahám , G. Altavilla , S. G. Baker , U. Bastian , P. O'Brien , J. de Bruijne , T. Butterley , J. M. Carrasco , J. Castañeda , J. S. Clark , G. Clementini , C. M. Copperwheat , M. Cropper , G. Damljanovic , M. Davidson , C. J. Davis , M. Dennefeld , V. S. Dhillon , C. Dolding , M. Dominik , P. Esquej , L. Eyer , C. Fabricius , M. Fridman , D. Froebrich , N. Garralda , A. Gomboc , J. J. González-Vidal , R. Guerra , N. C. Hambly , L. K. Hardy , B. Holl , A. Hourihane , J. Japelj , D. A. Kann , C. Kiss , C. Knigge , U. Kolb , S. Komossa , Á. Kóspál , G. Kovács , M. Kun , G. Leto , F. Lewis , S. P. Littlefair , A. A. Mahabal , C. G. Mundell , Z. Nagy , D. Padeletti , L. Palaversa , A. Pigulski , M. L. Pretorius , W. van Reeven , V. A. R. M. Ribeiro , M. Roelens , N. Rowell , N. Schartel , A. Scholz , A. Schwope , B. M. Sipőcz , S. J. Smartt , M. D. Smith , I. Serraller , D. Steeghs , M. Sullivan , L. Szabados , E. Szegedi-Elek , P. Tisserand , L. Tomasella , S. van Velzen , P. A Whitelock , R. W. Wilson , D. R. Young

Discovery of Gaia17bpp, a Giant Star with the Deepest and Longest Known Dimming Event

We report the serendipitous discovery of Gaia17bpp/2MASS J19372316+1759029, a star with a deep single large-amplitude dimming event of $\sim$4.5 magnitudes that lasted over 6.5 years. Using the optical to IR spectral energy distribution…

太阳与恒星天体物理 · 物理学 2023-06-22 Anastasios Tzanidakis , James R. A. Davenport , Eric C. Bellm , Yuankun Wang

Symbiotic star candidates in Gaia Data Release 3

Symbiotic stars, binary pairs with a cool giant fueling accretion onto a hot compact companion, offer unique insights to our understanding of stellar evolution. Yet, only a few hundred symbiotic stars are confirmed. Here, we report on a new…

太阳与恒星天体物理 · 物理学 2025-08-27 Samantha E. Ball , Benjamin C. Bromley , Scott J. Kenyon

Gaia22eor: Symbiotic star V2756 Sgr detected in a deep eclipse

V2756 Sgr is a long-known S-type symbiotic binary that was recently detected in $\sim$ 1 mag eclipse-like fading by the Gaia satellite. This behavior was reported as a Gaia Science Alert under the designation Gaia22eor. V2756 Sgr has not…

太阳与恒星天体物理 · 物理学 2022-12-09 Jaroslav Merc , Hamish Barker , Rudolf Gális

Gaia20dsk: A new MNor discovered by the GLORIOUS collaboration

Context. Among known young stellar objects (YSOs), those exhibiting the most dramatic increases in brightness due to sudden increase in mass accretion rate are eruptive young stars. Gaia20dsk is one of the Gaia-alerted young star candidates…

太阳与恒星天体物理 · 物理学 2026-01-26 Patrik E. Németh , Fernando Cruz-Sáenz de Miera , Ágnes Kóspál , Eleonora Fiorellino , Zsófia Nagy , Máté Szilágyi , Michal Siwak , Foteini Lykou , Mária Kun , Péter Ábrahám , Zsófia Marianna Szabó , Teresa Giannini , Lukasz Wyrzykowski

Gaia 18dvy: a new FUor in the Cygnus OB3 association

We present optical-infrared photometric and spectroscopic observations of Gaia18dvy, located in the Cygnus OB3 association at a distance of 1.88 kpc. The object was noted by the Gaia alerts system when its lightcurve exhibited a $\gtrsim$4…

太阳与恒星天体物理 · 物理学 2020-08-26 E. Szegedi-Elek , P. Ábrahám , L. Wyrzykowski , M. Kun , A. Kóspál , L. Chen , G. Marton , A. Moór , Cs. Kiss , A. Pál , L. Szabados , J. Varga , E. Varga-Verebélyi , C. Andreas , E. Bachelet , R. Bischoff , A. Bódi , E. Breedt , U. Burgaz , T. Butterley , V. Čepas , G. Damljanovic , I. Gezer , V. Godunova , M. Gromadzki , A. Gurgul , L. Hardy , F. Hildebrandt , S. Hoffmann , M. Hundertmark , N. Ihanec , R. Janulis , Cs. Kalup , Z. Kaczmarek , R. Könyves-Tóth , M. Krezinger , K. Kruszyńska , S. Littlefair , M. Maskoliūnas , L. Mészáros , P. Mikołajczyk , M. Mugrauer , H. Netzel , A. Ordasi , E. Pakštienė , K. A. Rybicki , K. Sárneczky , B. Seli , A. Simon , K. Šiškauskaitė , Á. Sódor , K. V. Sokolovsky , W. Stenglein , R. Street , R. Szakáts , L. Tomasella , Y. Tsapras , K. Vida , J. Zdanavičius , M. Zieliński , P. Zieliński , O. Ziółkowska

Photometric and spectroscopic study of the burst-like brightening of two Gaia-alerted young stellar objects

Young stars show variability on different time-scales from hours to decades, with a range of amplitudes. We studied two young stars, which triggered the Gaia Science Alerts system due to brightenings on a time-scale of a year. Gaia20bwa…

太阳与恒星天体物理 · 物理学 2022-07-20 Zsófia Nagy , Péter Ábrahám , Ágnes Kóspál , Sunkyung Park , Michał Siwak , Fernando Cruz-Sáenz de Miera , Eleonora Fiorellino , David García-Álvarez , Zsófia Marianna Szabó , Simone Antoniucci , Teresa Giannini , Alessio Giunta , Levente Kriskovics , Mária Kun , Gábor Marton , Attila Moór , Brunella Nisini , Andras Pál , László Szabados , Paweł Zielinski , Łukasz Wyrzykowski

Gaia 19ajj: A Young Star Brightening Due to Enhanced Accretion + Reduced Extinction

We report on the source Gaia 19ajj, identifying it as a young star associated with a little-studied star-forming region seen along a complex line-of-sight through the Gum Nebula. The optical lightcurve recently recorded by Gaia exhibits a…

太阳与恒星天体物理 · 物理学 2020-01-08 Lynne A. Hillenbrand , Bo Reipurth , Michael Connelley , Roc M. Cutri , Howard Isaacson

Photometric Science Alerts from Gaia

Gaia is the cornerstone mission of the European Space Agency. From late 2013 it will start collecting superb astrometric, photometric and spectroscopic data for around a billion of stars of our Galaxy. While surveying the whole sky down to…

天体物理仪器与方法 · 物理学 2012-10-23 Lukasz Wyrzykowski , Simon Hodgkin , Nadejda Blogorodnova , Sergey Koposov , Ross Burgon

Gaia23ckh: Symbiotic outburst of the assumed Mira variable V390 Sco

The poorly studied variable star V390 Sco, previously classified as a Mira pulsator, was detected in a brightening event by the ESA Gaia satellite in September 2023. This work presents an analysis of available archival multifrequency…

太阳与恒星天体物理 · 物理学 2024-03-22 Jaroslav Merc , Peter Velez , Stéphane Charbonnel , Olivier Garde , Pascal Le Dû , Lionel Mulato , Thomas Petit , Jan Skowron

The fast transient sky with Gaia

The ESA Gaia satellite scans the whole sky with a temporal sampling ranging from seconds and hours to months. Each time a source passes within the Gaia field of view, it moves over 10 CCDs in 45 s and a lightcurve with 4.5 s sampling (the…

太阳与恒星天体物理 · 物理学 2017-10-26 Thomas Wevers , Peter G. Jonker , Simon T. Hodgkin , Zuzanna Kostrzewa-Rutkowska , Diana L. Harrison , Guy Rixon , Gijs Nelemans , Maroussia Roelens , Laurent Eyer , Floor van Leeuwen , Abdullah Yoldas

Spectroscopic and photometric study of the new eclipsing polar Gaia23cer

We present the results of the optical study of the new eclipsing polar Gaia23cer. We analyzed the brightness variability of the polar in high ($\langle r \rangle \approx 16.5\mathrm{\,mag}$) and low ($\langle r \rangle \approx…

高能天体物理现象 · 物理学 2024-09-25 A. I. Kolbin , E. P. Pavlenko , V. Yu. Kochkina , A. S. Vinokurov , S. Yu. Shugarov , A. A. Sosnovskij , K. A. Antonyuk , O. I. Antonyuk , N. V. Pit , M. V. Suslikov , E. K. Galimova , N. V. Borisov , A. N. Burenkov , O. I. Spiridonova

Gaia16apd -- a link between fast-and slowly-declining type I superluminous supernovae

We present ultraviolet, optical and infrared photometry and optical spectroscopy of the type Ic superluminous supernova (SLSN) Gaia16apd (= SN 2016eay), covering its evolution from 26 d before the $g$-band peak to 234.1 d after the peak.…

高能天体物理现象 · 物理学 2017-06-06 T. Kangas , N. Blagorodnova , S. Mattila , P. Lundqvist , M. Fraser , U. Burgaz , E. Cappellaro , J. M. Carrasco Martínez , N. Elias-Rosa , L. K. Hardy , J. Harmanen , E. Y. Hsiao , J. Isern , E. Kankare , Z. Kołaczkowski , M. B. Nielsen , T. M. Reynolds , L. Rhodes , A. Somero , M. D. Stritzinger , Ł. Wyrzykowski

Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the $Kepler$ 2 Observations

Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the $Kepler$ field. The $Kepler$ data revealed an excess emission in its early light curve, allowing to place interesting…

太阳与恒星天体物理 · 物理学 2019-01-09 W. Li , X. Wang , J. Vinkó , J. Mo , G. Hosseinzadeh , D. J. Sand , J. Zhang , H. Lin , T. Zhang , L. Wang , J. Zhang , Z. Chen , D. Xiang , L. Rui , F. Huang , X. Li , X. Zhang , L. Li , E. Baron , J. M. Derkacy , X. Zhao , H. Sai , K. Zhang , L. Wang , D. A. Howell , C. McCully , I. Arcavi , S. Valenti , D. Hiramatsu , J. Burke , A. Rest , P. Garnavich , B. E. Tucker , G. Narayan , E. Shaya , S. Margheim , A. Zenteno , A. Villar , G. Dimitriadis , R. J. Foley , Y. -C. Pan , D. A. Coulter , O. D. Fox , S. W. Jha , D. O. Jones , D. N. Kasen , C. D. Kilpatrick , A. L. Piro , A. G. Riess , C. Rojas-Bravo , B. J. Shappee , T. W. -S. Holoien , K. Z. Stanek , M. R. Drout , K. Auchettl , C. S. Kochanek , J. S. Brown , S. Bose , D. Bersier , J. Brimacombe , P. Chen , S. Dong , S. Holmbo , J. A. Muñoz , R. L. Mutel , R. S. Post , J. L. Prieto , J. Shields , D. Tallon , T. A. Thompson , P. J. Vallely , S. Villanueva , S. J. Smartt , K. W. Smith , K. C. Chambers , H. A. Flewelling , M. E. Huber , E. A. Magnier , C. Z. Waters , A. S. B. Schultz , J. Bulger , T. B. Lowe , M. Willman , K. Sárneczky , A. Pál , J. C. Wheeler , A. Bódi , Zs. Bognár , B. Csák , B. Cseh , G. Csörnyei , O. Hanyecz , B. Ignácz , Cs. Kalup , R. Könyves-Tóth , L. Kriskovics , A. Ordasi , I. Rajmon , A. Sódor , R. Szabó , R. Szakáts , G. Zsidi , P. Milne , J. E. Andrews , N. Smith , C. Bilinski , P. J. Brown , J. Nordin , S. C. Williams , L. Galbany , J. Palmerio , I. M. Hook , C. Inserra , K. Maguire , Régis Cartier , A. Razza , C. P. Gutiérrez , J. J. Hermes , J. S. Reding , B. C. Kaiser , J. L. Tonry , A. N. Heinze , L. Denneau , H. Weiland , B. Stalder , G. Barentsen , J. Dotson , T. Barclay , M. Gully-Santiago , C. Hedges , A. M. Cody , S. Howell , J. Coughlin , J. E. Van Cleve , J. Vinícius de Miranda Cardoso , K. A. Larson , K. M. McCalmont-Everton , C. A. Peterson , S. E. Ross , L. H. Reedy , D. Osborne , C. McGinn , L. Kohnert , L. Migliorini , A. Wheaton , B. Spencer , C. Labonde , G. Castillo , G. Beerman , K. Steward , M. Hanley , R. Larsen , R. Gangopadhyay , R. Kloetzel , T. Weschler , V. Nystrom , J. Moffatt , M. Redick , K. Griest , M. Packard , M. Muszynski , J. Kampmeier , R. Bjella , S. Flynn , B. Elsaesser

The Enigma of Gaia18cjb: a Rare Hybrid of FUor and EXor?

Context. Gaia18cjb is one of the Gaia-alerted eruptive young star candidates which has been experiencing a slow and strong brightening during the last 13 years, similar to some FU Orionis-type objects. Aims. The aim of this work is to…

太阳与恒星天体物理 · 物理学 2024-06-12 Eleonora Fiorellino , Peter Abraham , Agnes Kospal , Maria Kun , Juan M. Alcala , Alessio Caratti o Garatti , Fernando Cruz-Saenz de Miera , David Garcia-Alvarez , Teresa Giannini , Sunkyung Park , Michal Siwak , Mate Szilagyi , Elvira Covino , Gabor Marton , Zsofia Nagy , Brunella Nisini , Zsofia Marianna Szabo , Zsofia Bora , Borbala Cseh , Csilla Kalup , Mate Krezinger , Levente Kriskovics , Waldemar Ogloza , Andras Pal , Adam Sodor , Eda Sonbas , Robert Szakats , Krisztian Vida , Jozsef Vinko , Lukasz Wyrzykowski , Pawel Zielinski

Light Curve for Type Ia Supernova Candidate AT 2018we

We present photometric follow-up observations of the supernova candidate AT 2018we, which was discovered by the Gaia photometric alerts system. The first Gaia detection of the object was made Feb 12, 2018. Our observations, made in Cousins…

太阳与恒星天体物理 · 物理学 2018-09-18 T. Willamo , J. Ala-Könni , J. Arvo , I. Pippa , T. Salo