Hubble Space Telescope Discovery of a Probable Caustic-Crossing Event in the MACS1149 Galaxy Cluster Field

Patrick L. Kelly, Steven Rodney, Jose Maria Diego, Adi Zitrin, Tom Broadhurst, Jonatan Selsing, Italo Balestra, Alberto Molino Benito, Marusa Bradac, Larry Bradley, Gabriel Brammer, Brad Cenko, Lise Christensen, Dan Coe, Alexei V. Filippenko, Ryan Foley, Brenda Frye, Melissa Graham, Or Graur, Claudio GrilloJens Hjorth, Andy Howell, Mathilde Jauzac, Saurabh Jha, Nick Kaiser, Ryota Kawamata, Jean-Paul Kneib, Jennifer Lotz, Thomas Matheson, Curtis McCully, Julian Merten, Mario Nonino, Masamune Oguri, Johan Richard, Adam Riess, Piero Rosati, Kasper Borello Schmidt, Keren Sharon, Nathan Smith, Lou Strolger, Tommaso Treu, Xin Wang, Ben Weiner, Liliya Williams, Weikang Zheng

Research output: Contribution to journalArticlepeer-review

Abstract

While monitoring the MACS1149 (z = 0.54) galaxy cluster as part of the RefsdalRedux program (PID 14199; PI Kelly) with the Hubble Space Telescope (HST) WFC3 IR camera, we have detected a rising transient that appears to be coincident ( Target-of-opportunity optical follow-up imaging in several ACS and WFC3 bands with the FrontierSN program (PID 14208; PI Rodney) has revealed that its rest-frame ultraviolet through optical spectrum may be reasonably well fit with that of a B star at z=1.49 exhibiting a strong Balmer break.
Original languageEnglish
JournalThe Astronomer's Telegram
Volume9097
StatePublished - 2016

Keywords

  • Request for Observations
  • Transient

Fingerprint

Dive into the research topics of 'Hubble Space Telescope Discovery of a Probable Caustic-Crossing Event in the MACS1149 Galaxy Cluster Field'. Together they form a unique fingerprint.

Cite this