| Full text | |
| Author(s): Show less - |
Rodney, S. A.
[1]
;
Balestra, I.
[2]
;
Bradac, M.
[3]
;
Brammer, G.
[4]
;
Broadhurst, T.
[5, 6]
;
Caminha, G. B.
[7, 8]
;
Chirivi, G.
[9]
;
Diego, J. M.
[10]
;
Filippenko, A. V.
[11, 12]
;
Foley, R. J.
[13]
;
Graur, O.
[14, 15, 16]
;
Grillo, C.
[17, 18]
;
Hemmati, S.
[19]
;
Hjorth, J.
[18]
;
Hoag, A.
[3]
;
Jauzac, M.
[20, 21, 22]
;
Jha, S. W.
[23]
;
Kawamata, R.
[24]
;
Kelly, P. L.
[25, 11]
;
McCully, C.
[26, 27]
;
Mobasher, B.
[28]
;
Molino, A.
[29, 30]
;
Oguri, M.
[31, 32, 33]
;
Richard, J.
[34]
;
Riess, A. G.
[35, 4]
;
Rosati, P.
[8]
;
Schmidt, K. B.
[26, 36]
;
Selsing, J.
[18]
;
Sharon, K.
[37]
;
Strolger, L. -G.
[4]
;
Suyu, S. H.
[9, 38, 39]
;
Treu, T.
[40]
;
Weiner, B. J.
[41]
;
Williams, L. L. R.
[25]
;
Zitrin, A.
[42]
Total Authors: 35
|
| Affiliation: Show less - | [1] Univ South Carolina, Dept Phys & Astron, Columbia, SC 29208 - USA
[2] Univ Observ Munich, Munich - Germany
[3] Univ Calif Davis, Dept Phys, Davis, CA 95616 - USA
[4] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 - USA
[5] Euskal Herriko Unibertsitatea UPV EHU, Fis Teorikoa, Zientzia & Teknol Fak, Leioa - Spain
[6] Ikerbasque, Basque Fdn Sci, Alameda, CA - Spain
[7] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen - Netherlands
[8] Univ Ferrara, Dipartimento Fis & Sci Terra, Ferrara - Italy
[9] Max Planck Inst Astrophys, Garching - Germany
[10] Inst Fis Cantabria UC CSIC, IFCA, Santander - Spain
[11] Univ Calif Berkeley, Dept Astron, 601 Campbell Hall, Berkeley, CA 94720 - USA
[12] Univ Calif Berkeley, Miller Inst Basic Res Sci, Berkeley, CA 94720 - USA
[13] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 - USA
[14] Amer Museum Nat Hist, Dept Astrophys, New York, NY 10024 - USA
[15] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 - USA
[16] NYU, Ctr Cosmol & Particle Phys, New York, NY - USA
[17] Univ Milan, Dipartimento Fis, Milan - Italy
[18] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, Copenhagen - Denmark
[19] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA - USA
[20] Univ Durham, Dept Phys, Ctr Extragalact Astron, Durham - England
[21] Univ Durham, Inst Computat Cosmol, Durham - England
[22] Univ KwaZulu Natal, Sch Math Sci, Astrophys & Cosmol Res Unit, Durban - South Africa
[23] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ - USA
[24] Univ Tokyo, Grad Sch Sci, Dept Astron, Tokyo - Japan
[25] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 - USA
[26] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 - USA
[27] Las Cumbres Observ Global Telescope Network, Goleta, CA - USA
[28] Univ Calif Riverside, Dept Phys & Astron, Riverside, CA 92521 - USA
[29] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo - Brazil
[30] CSIC, Inst Astrofis Andalucia, Granada - Spain
[31] Univ Tokyo, Dept Phys, Tokyo - Japan
[32] Univ Tokyo, Res Ctr Early Universe, Tokyo - Japan
[33] Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, WPI, Kashiwa, Chiba - Japan
[34] Univ Lyon1, Univ Lyon, Ens Lyon, CNRS, Ctr Rech Astrophys Lyon UMR5574, F-69230 St Genis Laval - France
[35] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 - USA
[36] Leibniz Inst Astrophys Potsdam AIP, Potsdam - Germany
[37] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 - USA
[38] Acad Sinica, Inst Astron & Astrophys, Taipei - Taiwan
[39] Tech Univ Munich, Phys Dept, Garching - Germany
[40] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA - USA
[41] Univ Arizona, Dept Astron, Tucson, AZ - USA
[42] Ben Gurion Univ Negev, Beer Sheva - Israel
Total Affiliations: 42
|
| Document type: | Journal article |
| Source: | NATURE ASTRONOMY; v. 2, n. 4, p. 324-333, APR 2018. |
| Web of Science Citations: | 9 |
| Abstract | |
A massive galaxy cluster can serve as a magnifying glass for distant stellar populations, as strong gravitational lensing magnifies background galaxies and exposes details that are otherwise undetectable. In time-domain astronomy, imaging programmes with a short cadence are able to detect rapidly evolving transients, previously unseen by surveys designed for slowly evolving supernovae. Here, we describe two unusual transient events discovered in a Hubble Space Telescope programme that combined these techniques with high-cadence imaging on a field with a strong-lensing galaxy cluster. These transients were faster and fainter than any supernovae, but substantially more luminous than a classical nova. We find that they can be explained as separate eruptions of a luminous blue variable star or a recurrent nova, or as an unrelated pair of stellar microlensing events. To distinguish between these hypotheses will require clarification of the cluster lens models, along with more high-cadence imaging of the field that could detect related transient episodes. This discovery suggests that the intersection of strong lensing with high-cadence transient surveys may be a fruitful path for future astrophysical transient studies. (AU) | |
| FAPESP's process: | 14/11806-9 - Challenges for the new generation of wide-field photometric redshift surveys like J-PAS |
| Grantee: | Alberto Molino Benito |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |