Papers

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2019 Dirk Grupe, S. Komossa, Norbert Schartel, Michael Parker

, Wolfram Kollatschny, Martin W. Ochmann, Encarni Romero Colmenero

Swift catches Changing Look AGN IRAS 23226-3843 in outburst

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Dirk Grupe, Rebecca Mikula, S. Komossa, Christopher Kochanek, K. Z. Stanek, Ben Shappee, Anna Payne, James Armstrong, Katie Auchettl, Norbert Schartel, Michael Parker

, Xinyu Dai

Swift catches the changing-look AGN NGC 1566 in an X-ray outburst again

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This paper was not found in any repository, but could be made available legally by the author.

Dirk Grupe

, S. Komossa, Luigi Gallo, Norbert Schartel, Michael Parker

, Maria Santos-Lleo, Andrew C. Fabian

, Fiona Harrison, Giovanni Miniutti

Swift, NuStar and XMM-Newton observations of the NLS1 galaxy RX J2317.8–4422 in an extreme X-ray low flux state

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2018 Dirk Grupe, Rebecca Mikula, S. Komossa, Kris Stanek, Katie Auchettl, Ben Shappee, Anna Payne, James Armstrong, Norbert Schartel, Michael Parker

, Xinyu Dai

Rebrightening of the changing look Seyfert galaxy NGC 1566

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Subhash Bose

, Thomas de Jaeger, Subo Dong

, A. Pastorello, Alexei V. Filippenko

, Cs S. Kochanek

, Jon Mauerhan

, C. Romero-Cañizales

, Thomas G. Brink, Ping Chen

, Jl L. Prieto

, R. Post, Christopher Ashall

, Dirk Grupe

, L. Tomasella and 44 other authors

Gaia17biu/SN 2017egm in NGC 3191: The Closest Hydrogen-poor Superluminous Supernova to Date Is in a “Normal,” Massive, Metal-rich Spiral Galaxy

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2017 Dacheng Lin

, Jay Strader, Eleazar R. Carrasco

, Olivier Godet, Dirk Grupe, Natalie A. Webb, Didier Barret, Jimmy A. Irwin

Multiwavelength follow-up observations of the tidal disruption event candidate 2XMMi J184725.1−631724

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Dacheng Lin, James Guillochon

, St. Komossa, Enrico Ramirez-Ruiz, Jimmy Irwin, W. Peter Maksym, Dirk Grupe, Olivier Godet, Natalie Webb, Didier Barret, Bevin Zauderer, Pierre-Alain Duc, Eleazar R. Carrasco, Stephen Gwyn

Super-Eddington Accreting Tidal Disruption Events

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2016 Dirk Grupe, Peter Brown, Subo Dong, B. J. Shappee

, Tom Holoien, Kris Stanek, Jose L. Prieto, Raffaella Margutti

X-ray and UV detections of the supernova candidate ASASSN 16fp (AT 2016coi) with Swift

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Ann E. Wehrle, Dirk Grupe, Svetlana G. Jorstad, Alan P. Marscher, Mark Gurwell

, Mislav Baloković

, Talvikki Hovatta, Grzegorz M. Madejski, Fiona H. Harrison, Daniel Stern

Erratic Flaring of Bl Lac in 2012–2013: Multiwavelength Observations

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Dirk Grupe, Subo Dong, B. J. Shappee

, Tom Holoien, Kris Stanek, Chris Kochanek, Jose L. Prieto, Raffaella Margutti

Discovery of X-rays from the Type IIP supernova ASASSN 16at with Swift

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2015 Dacheng Lin

, Peter W. Maksym, Jimmy A. Irwin

, S. Komossa

, Natalie A. Webb, Olivier Godet, Didier Barret

, Dirk Grupe

, Stephen D. J. Gwyn

An Ultrasoft X-Ray Flare From 3xmm J152130.7+074916: A Tidal Disruption Event Candidate

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S. Komossa, Dirk Grupe, Mason Bush, Chelsea Pruett, Sonny Ernst, Taylor Barber, Jen Carter, Norbert Schartel, Pedro Rodriguez, Maria Santos-Lleo

Finding AGN in Deep X-ray Flux States with Swift

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S. Komossa, Dirk Grupe, Richard Saxton, Luigi Gallo

Seyfert galaxies with Swift: giant flares, rapid drops, and other surprises

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Karen M. Leighly

, Erin Cooper

, Dirk Grupe

, Donald M. Terndrup

, S. Komossa

Variable Reddening and Broad Absorption Lines in the Narrow-Line Seyfert 1 Galaxy Wpvs 007: An Origin in the Torus

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Su Yao

, Weimin Yuan, S. Komossa

, Dirk Grupe

, L. Fuhrmann, Bifang Liu

THEγ-RAY DETECTED NARROW-LINE SEYFERT 1 GALAXY 1H 0323+342:SWIFTMONITORING ANDSUZAKUSPECTROSCOPY

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Dirk Grupe

, S. Komossa

, Richard Saxton

Ic 3599 Did It Again: A Second Outburst of the X-Ray Transient Seyfert 1.9 Galaxy

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Jaderson S. Schimoia

, Thaisa Storchi-Bergmann

, Dirk Grupe

, Michael Eracleous, Bradley M. Peterson

, Jack A. Baldwin, Rodrigo S. Nemmen, Cláudia Winge

Short-Timescale Monitoring of the X-Ray, Uv, and Broad Double-Peak Emission Line of the Nucleus of Ngc 1097

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Dirk Grupe

, John A. Nousek

Is There a Connection Between Broad Absorption Line Quasars and Narrow-Line Seyfert 1 Galaxies?

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