DRAFT
2021-11-13 23:49:19
Type: Object/s-Data/Analysis
Bibcode: 2021TNSAN.293....1A
Zwicky Transient Facility detection of AT2021aeba
Authors: Igor Andreoni (JSI/UMD/NASA-GSFC), Jakob Nordin (HU Berlin)
Source Group: ZTF
Keywords: Transient, Supernova
Abstract:
Forced photometry at the location of transient AT2021aeba (Fulton et al., AstroNote 2021-291; Chen et al., AstroNote 2021-292) revealed 48 detections in Zwicky Transient Facility data. The first ZTF detection of AT2021aeba was on 2021-09-02 UT and the last was on 2021-11-11 UT. These observations imply a duration of > 70 days for AT2021aeba, which strongly disfavors the possibility that AT2021aeba is a kilonova or a core-collapse supernova shock cooling.

Forced photometry (Masci et al., 2019) at the location of transient AT2021aeba (Fulton et al., AstroNote 2021-291; Chen et al., AstroNote 2021-292) revealed 48 detections in Zwicky Transient Facility (ZTF; Bellm et al., 2019; Graham et al.; 2019) data.

ZTF observed the field of AT2021aeba 1327 times between 2018-03-28 and 2021-11-13 UT. AT2021aeba was first detected on 2021-09-02 UT. Since then, it was detected 43 times in r-band and 5 times in i-band. The brightest detection was r = 19.74 +- 0.19 mag (AB) on 2021-09-04 UT. The latest ZTF detection was i = 20.97 +- 0.30 mag on 2021-11-11 UT.

These observations imply a duration of > 70 days for AT2021aeba, which strongly disfavors the possibility that AT2021aeba is a kilonova or a core-collapse supernova shock cooling.


Based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grant No. AST-2034437 and a collaboration including Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and Humboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, and IN2P3, France. Operations are conducted by COO, IPAC, and UW.

Show current TNS values
Catalog Name Reported RA Reported DEC Reported Obj-Type Reported Redshift Host Name Host Redshift Remarks TNS RA TNS DEC TNS Obj-Type TNS Redshift
TNS 2021aeba 08:08:45.177 +18:42:06.11 08:08:45.177 +18:42:06.11
AstroNote Publication Timestamp Title Authors
2021-291 2021-11-13 21:05:06 Pan-STARRS Search for Kilonovae: discovery of a fast fading and intrinsically faint transient (AT2021aeba) in SDSS J080844.91+184204.6 (191 Mpc) M. Fulton, S. J. Smartt, K. W. Smith (QUB), T.-W. Chen (Stockholm), K. C. Chambers, M. Huber, A. Schultz (IfA, Hawaii), M. Nicholl (Birmingham), D. R. Young, L. J. Shingles, S. Srivastav, J. Gillanders, S. Sim (QUB), T. de Boer, J. Bulger, J. Fairlamb, C.-C. Lin, T. Lowe, E. Magnier, R. J. Wainscoat, H. Gao (IfA), D. E. Wright (University of Minnesota), C. Stubbs (Harvard), A. Rest (STScI)
2021-292 2021-11-13 22:01:10 ePESSTO+ near-infrared imaging and detection of the faint and fading AT2021aeba T.-W. Chen (Stockholm), M. Fulton (QUB), D. B. Malesani (Radboud Univ. and DAWN/NBI), S. Smartt, K.W. Smith (QUB), R. Carini, F. Onori, (INAF-OAAb), P. D'Avanzo, A. Melandri (INAF-OAB), G. Pignata (UNAB), E. Paraskeva (IAASARS/NOA), N. Elias-Rosa (INAF-OAPd), S. Yang (Stockholm), J. Anderson (ESO), M. Gromadzki (Warsaw), C. Inserra (Cardiff), E. Kankare (Turku), T. Müller Bravo (ICE), M. Nicholl (Birmingham), O. Yaron (Weizmann), D. Young (QUB), K. Chambers, M. Huber, A. Schultz (IfA, University of Hawaii).

Comments