DRAFT
2022-10-10 16:40:28
Type: Object/s-Discovery/Classification
Bibcode: 2022TNSAN.208....1C
GOTO early photometry of AT2022tsd on 6 Sept
Authors: D. Coppejans, J. Lyman, J. Bright, K. Ulaczyk, K. Ackley, M. Dyer, D. Steeghs, D. K. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, D. Pollacco, E. Thrane, K. Noysena, R. Kotak, L. Nuttall, E. Pallé, R. Breton, T. Killestein, D. O'Neill, A. Kumar, F. Jiminez-Ibarra
Source Group: GOTO
Keywords: Photometry, Optical, Transient
Abstract:
We report an early detection of the fast-rising optical transient AT2022tsd recovered in GOTO data on 2022-09-06 05:25 (MJD=59828.2257).

The Gravitational-wave Optical Transient Observer (GOTO) collaboration reports the recovery of an early detection of AT2022tsd.

The observation was taken on 2022-09-06 05:25 (MJD=59828.2257) in L-band (~400-700nm) and the source was detected with magnitude m_L = 20.65+/-0.10 mag. This observation was taken approximately 30 hours before the first ZTF detection and 43 hours after the last reported non-detection (Astronote 2022-199).

We note this measurement will have some contribution due to the underlying host galaxy, since the detection image was itself the template observation of the field - future difference-image photometry will become available.

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 2022tsd 03:20:10.863 +08:44:55.63 03:20:10.863 +08:44:55.63
AstroNote Publication Timestamp Title Authors
2022-206 2022-10-05 17:36:03 Pan-STARRS observations of AT2022tsd M. Fulton, S. J. Smartt, K. W. Smith, D. R. Young, S. Srivastav, T. Moore (QUB), K. C. Chambers , M. E. Huber, A. S. B. Schultz, T. de Boer, J. Bulger, J. Fairlamb, H. Gao, C. C. Lin, T. Lowe, E. Magnier, R. J. Wainscoat (IfA, Univ. Hawaii), T.-W. Chen (Stockholm), A. Rest (STScI), C. Stubbs (Harvard)
2022-207 2022-10-05 18:08:11 Swift X-ray Detection of AT2022tsd Steve Schulze (OKC), Anna Y. Q. Ho (Cornell), D. A. Perley (LJMU), L. Yan (Caltech) and C. Fremling (Caltech)
2022-199 2022-09-29 12:38:33 Keck/LRIS Observations of AT2022tsd, a Fast-Rising Optical Transient Coincident with a z=0.256 Galaxy Anna Y. Q. Ho (Cornell), D. A. Perley (LJMU), A. V. Filippenko, W. Zheng, and T. G. Brink (UC Berkeley), Maggie Li (Cornell), Kailai Wang (Cornell)
2022-205 2022-10-04 14:01:04 VLA Ku-band Detection of AT2022tsd Anna Y. Q. Ho (Cornell), Daniel A. Perley (LJMU)

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