Author
Alex Filippenko
results may include different authors with the same name
7 papers
Stars on bound orbits around a supermassive black hole may undergo repeated partial tidal disruption events (rpTDEs), producing periodic flares. While several candidates have been suggested, definitive confirmation of these events remains…
High Energy Astrophysical Phenomena · Physics
2025-11-03
Yibo Wang , Tingui Wang , Shifeng Huang , Jiazheng Zhu , Ning Jiang , Wenbin Lu , Rongfeng Shen , Shiyan Zhong , Dong Lai , Yi Yang , Xinwen Shu , Tianyu Xia , Di Luo , Jianwei Lyu , Thomas Brink , Alex Filippenko , Weikang Zheng , Minxuan Cai , Zelin Xu , Mingxin Wu , Xiaer Zhang , Weiyu Wu , Lulu Fan , Ji-an Jiang , Xu Kong , Bin Li , Feng Lin , Ming Liang , Wentao Luo , Jinlong Tang , Zhen Wan , Hairen Wang , Jian Wang , Yongquan Xue , Dazhi Yao , Hongfei Zhang , Wen Zhao , Xianzhong Zheng , Qingfeng Zhu , Yingxi Zuo
We present an extensive photometric and spectroscopic ultraviolet-optical-infrared campaign on the luminous fast blue optical transient (LFBOT) AT 2024wpp over the first ~100 d. AT 2024wpp is the most luminous LFBOT discovered to date, with…
High Energy Astrophysical Phenomena · Physics
2025-09-03
Natalie LeBaron , Raffaella Margutti , Ryan Chornock , A. J. Nayana , Olivia Aspegren , Wenbin Lu , Brian Metzger , Daniel Kasen , Thomas Brink , Sergio Campana , Paolo D'Avanzo , Jakob Faber , Matteo Ferro , Alex Filippenko , Ryan Foley , Xinze Guo , Erica Hammerstein , Saurabh Jha , Charles Kilpatrick , Giulia Migliori , Dan Milisavljevic , Kishore Patra , Huei Sears , Jonathan Swift , Samaporn Tinyanont , Vikram Ravi , Yuhan Yao , Kate Alexander , Prasiddha Arunachalam , Edo Berger , Joe Bright , Chuck Cynamon , Kyle Davis , Braden Garretson , Puragra Guhathakurta , Wynn Jacobson-Galan , David Jones , Ravjit Kaur , Stefan Kimura , Tanmoy Laskar , Morgan Nuñez , Michaela Schwab , Monika Soraisam , Nao Suzuki , Kirsty Taggart , Eli Wiston , Yi Yang , WeiKang Zheng
We present a test of the statistical method introduced by Bernard F. Shutz in 1986 using only gravitational waves to infer the Hubble constant ($\text{H}_0$) from GW190814, the first high-probability neutron-star--black-hole (NS-BH) merger…
While Type Ia Supernovae (SNe Ia) are one of the most mature cosmological probes, the next era promises to be extremely exciting in the number of different ways SNe Ia are used to measure various cosmological parameters. Here we review the…
Cosmology and Nongalactic Astrophysics · Physics
2019-03-15
Dan Scolnic , Saul Perlmutter , Greg Aldering , Dillon Brout , Tamara Davis , Alex Filippenko , Ryan Foley , Renee Hlozek , Rebekah Hounsell , Saurabh Jha , David Jones , Pat Kelly , Rick Kessler , Alex Kim , David Rubin , Adam Riess , Steven Rodney , Justin Roberts-Pierel , Christopher Stubbs , Yun Wang , Jacobo Asorey , Arturo Avelino , Chetan Bavdhankar , Peter J. Brown , Anthony Challinor , Christophe Balland , Asantha Cooray , Suhail Dhawan , Georgios Dimitriadis , Cora Dvorkin , Julien Guy , Will Handley , Ryan E. Keeley , Jean-Paul Kneib , Benjamin LHuillier , Massimiliano Lattanzi , Kaisey Mandel , James Mertens , Mickael Rigault , Pavel Motloch , Suvodip Mukherjee , Gautham Narayan , Andrei Nomerotski , Lyman Page , Levon Pogosian , Giuseppe Puglisi , Marco Raveri , Nicolas Regnault , Armin Rest , Cesar Rojas-Bravo , Masao Sako , Feng Shi , Srivatsan Sridhar , Aritoki Suzuki , Yu-Dai Tsai , W. M. Wood-Vasey , Yannick Copin , Gong-Bo Zhao , Ningfeng Zhu
Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. It encompasses a wide range of objects and phenomena: stars, supernovae, novae, neutron stars,…
High Energy Astrophysical Phenomena · Physics
2019-02-11
Chris L. Fryer , Frank Timmes , Aimee L. Hungerford , Aaron Couture , Fred Adams , Wako Aoki , Almudena Arcones , David Arnett , Katie Auchettl , Melina Avila , Carles Badenes , Eddie Baron , Andreas Bauswein , John Beacom , Jeff Blackmon , Stephane Blondin , Peter Bloser , Steve Boggs , Alan Boss , Terri Brandt , Eduardo Bravo , Ed Brown , Peter Brown , Steve Bruenn. Carl Budtz-Jorgensen , Eric Burns , Alan Calder , Regina Caputo , Art Champagne , Roger Chevalier , Alessandro Chieffi , Kelly Chipps , David Cinabro , Ondrea Clarkson , Don Clayton , Alain Coc , Devin Connolly , Charlie Conroy , Benoit Cote , Sean Couch , Nicolas Dauphas , Richard James deBoer , Catherine Deibel , Pavel Denisenkov , Steve Desch , Luc Dessart , Roland Diehl , Carolyn Doherty , Inma Dominguez , Subo Dong , Vikram Dwarkadas , Doreen Fan , Brian Fields , Carl Fields , Alex Filippenko , Robert Fisher , Francois Foucart , Claes Fransson , Carla Frohlich , George Fuller , Brad Gibson , Viktoriya Giryanskaya , Joachim Gorres , Stephane Goriely , Sergei Grebenev , Brian Grefenstette , Evan Grohs , James Guillochon , Alice Harpole , Chelsea Harris , J. Austin Harris , Fiona Harrison , Dieter Hartmann , Masa-aki Hashimoto , Alexander Heger , Margarita Hernanz , Falk Herwig , Raphael Hirschi , Raphael William Hix , Peter Hoflich , Robert Hoffman , Cole Holcomb , Eric Hsiao , Christian Iliadis , Agnieszka Janiuk , Thomas Janka , Anders Jerkstrand , Lucas Johns , Samuel Jones , Jordi Jose , Toshitaka Kajino , Amanda Karakas , Platon Karpov , Dan Kasen , Carolyn Kierans , Marc Kippen , Oleg Korobkin , Chiaki Kobayashi , Cecilia Kozma , Saha Krot , Pawan Kumar , Irfan Kuvvetli , Alison Laird , Martin Laming , Josefin Larsson , John Lattanzio , James Lattimer , Mark Leising , Annika Lennarz , Eric Lentz , Marco Limongi , Jonas Lippuner , Eli Livne , Nicole Lloyd-Ronning , Richard Longland , Laura A. Lopez , Maria Lugaro , Alexander Lutovinov , Kristin Madsen , Chris Malone , Francesca Matteucci , Julie McEnery , Zach Meisel , Bronson Messer , Brian Metzger , Bradley Meyer , Georges Meynet , Anthony Mezzacappa , Jonah Miller , Richard Miller , Peter Milne , Wendell Misch , Lee Mitchell , Philipp Mosta , Yuko Motizuki , Bernhard Muller , Matthew Mumpower , Jeremiah Murphy , Shigehiro Nagataki , Ehud Nakar , Ken'ichi Nomoto , Peter Nugent , Filomena Nunes , Brian O'Shea , Uwe Oberlack , Steven Pain , Lucas Parker , Albino Perego , Marco Pignatari , Gabriel Martinez Pinedo , Tomasz Plewa , Dovi Poznanski , William Priedhorsky , Boris Pritychenko , David Radice , Enrico Ramirez-Ruiz , Thomas Rauscher , Sanjay Reddy , Ernst Rehm , Rene Reifarth , Debra Richman , Paul Ricker , Nabin Rijal , Luke Roberts , Friedrich Ropke , Stephan Rosswog , Ashley J. Ruiter , Chris Ruiz , Daniel Wolf Savin , Hendrik Schatz , Dieter Schneider , Josiah Schwab , Ivo Seitenzahl , Ken Shen , Thomas Siegert , Stuart Sim , David Smith , Karl Smith , Michael Smith , Jesper Sollerman , Trevor Sprouse , Artemis Spyrou , Sumner Starrfield , Andrew Steiner , Andrew W. Strong , Tuguldur Sukhbold , Nick Suntzeff , Rebecca Surman , Toru Tanimori , Lih-Sin The , Friedrich-Karl Thielemann , Alexey Tolstov , Nozomu Tominaga , John Tomsick , Dean Townsley , Pelagia Tsintari , Sergey Tsygankov , David Vartanyan , Tonia Venters , Tom Vestrand , Jacco Vink , Roni Waldman , Lifang Wang , Xilu Wang , MacKenzie Warren , Christopher West , J. Craig Wheeler , Michael Wiescher , Christoph Winkler , Lisa Winter , Bill Wolf , Richard Woolf , Stan Woosley , Jin Wu , Chris Wrede , Shoichi Yamada , Patrick Young , Remco Zegers , Michael Zingale , Simon Portegies Zwart
We present mid-infrared (MIR) observations of the Type II-plateau supernova (SN) 2004et, obtained with the {\it Spitzer Space Telescope} between days 64 and 1406 past explosion. Late-time optical spectra are also presented. For the period…
Solar and Stellar Astrophysics · Physics
2009-10-02
Rubina Kotak , Peter Meikle , Duncan Farrah , Christopher Gerardy , Ryan Foley , Schuyler van Dyk , Claes Fransson , Peter Lundqvist , Jesper Sollerman , Robert Fesen , Alex Filippenko , Seppo Mattila , Jeffrey Silverman , Anja Andersen , Peter Hoeflich , Monica Pozzo , J. Craig Wheeler
The proper usage of Type Ia supernovae (SNe Ia) as distance indicators has revolutionized cosmology, and added a new dominant component to the energy density of the Universe, dark energy. Following the discovery and confirmation era, the…
Astrophysics · Physics
2007-05-23
Jesper Sollerman , Claudio Aguilera , Andy Becker , Stephane Blondin , Pete Challis , Alejandro Clocchiatti , Alex Filippenko , Ryan Foley , Peter M. Garnavich , Malcolm Hicken , Saurabh Jha , Robert Kirshner , Kevin Krisciunas , Bruno Leibundgut , Weidong Li , Thomas Matheson , Gajus Miknaitis , Armin Rest , Adam G. Riess , Maria Elena Salvo , Brian P. Schmidt , Chris Smith , Jason Spyromilio , Chris Stubbs , Nicholas B. Suntzeff , John L. Tonry , Michael Wood-Vasey , Brian Barris , Tamara Davis , Edvard Mortsell