GCN Circular 24468

C. D. Kilpatrick, M. R. Siebert, J. S. Brown, D. A. Coulter, G. Dimitriadis, R. J. Foley, C. Rojas-Bravo,  K. Siellez, T. Hung, D. O. Jones, A. Murguia-Berthier, J. X. Prochaska, E. Ramirez-Ruiz (UCSC), J. A. Smith (Austin Peay State University), M. Wiesner (Benedictine University), F. Berlfein, A. Garcia, M. Pereira, M. Soares-Santos (Brandeis University), I. Souza (CBPF), M. Makler, I. Souza (CBPF/Brazil), B. Madore, A. L. Piro (Carnegie), H.-Y. Chen (Harvard), R. Kirshner (CfA), B. Metzger (Columbia University), D. Scolnic (Duke University), S. Allam, J. Annis, M. Butner, H. T. Diehl, A. Drlica-Wagner, J. Frieman, K. Herner, N. Kuropatkin, H. Lin, E. Neilsen, A. Palmese, D. Tucker, B. Yanny (Fermilab), J. Horvath, L. Rocha (IAG-USP/Brazil), A. Bernardo (IAS-USP/Brazil), P. Barchi, R. de Carvalho (INPE/Brazil), R. Butler, S. Salim (Indiana University), A. Riess (JHU), N. Tominaga (Konan U/Japan), J. Vinko (Konkoly Observatory), K. Bechtol (LSST), J. Burke, D. Hiramatsu, C. McCully (Las Cumbres Observatory), D. Haggard (McGill University), Y. Pan, M. Tanaka, M. Yoshida, M. Yoshida (NAOJ), R. Gruendl, F. Paz-Chinchon (NCSA), K. Vivas, A. Walker, A. Zenteno (NOAO), F. Bauer, A. Clocchiatti (Pontificia Universidad Catolica de Chile), K. Spekkens (Royal Military College of Canada), S. Jha (Rutgers University), A. Calamida, C. Contreras, G. Narayan, A. Rest (STScI), M. Gill, Y. Utsumi (Stanford), J. Cooke (Swinburne University of Technology), I. Arcavi (Tel Aviv University), K. Krisciunas, N. Suntzeff, L. Wang (Texas A&M), A. Corsi (Texas Tech University), A. Horesh (The Hebrew University), X. Wang (Tsinghua University), J. S. Bloom, T. Brink, A. V. Filippenko, D. Kasen, E. Quataert, W. Zheng (UC Berkeley), A. Bostroem, S. Valenti (UC Davis), A. Howell (UC Santa Barbara), R. Sturani (UFRN/Brazil), S. Rembold (UFSM/Brazil), T. Davis (UQ/Australia), O. Rodri (Universidad Andres Bello), F. Forster-Buron (Universidad de Chile), W. Hartley, O. Lahav (University College London), J. Andrews, M. Lundquist, D. Sand (University of Arizona), Z. Doctor, M. Fishbach, W. Freedman, D. Holz, R. Kessler (University of Chicago), P. M. Garnavich (University of Notre Dame), C. Conselice (University of Nottingham), D. Brout, C. D'Andrea, M. Sako (University of Pennsylvania), C. Frohmaier, A. Lundgren, R. Nichol, L. Nuttall (University of Portsmouth), M. Smith, M. Sullivan (University of Southampton), J. C. Wheeler (University of Texas/Austin), M. Drout (University of Toronto), R. Morgan (University of Wisconsin-Madison), K. Lukosiute (Wellesley College)

report on behalf of the 1M2H and DESGW collaborations:

In the process of searching the localization region of LIGO/Virgo S190510g (LIGO/VIRGO Collaboration, GCN #24448
Not found
 
 
), we obtained 3-minute r-band exposures of the following regions with the Goodman High Throughput Spectrograph on the SOAR 4-m telescope.  The field of view is a 7.2-arcmin diameter circle.  The approximate center of each image is noted in the table below.  We also note the approximate 3-sigma limiting magnitude of each image.

Comparing our images to DES DR1 r-band images of the same fields, we did not detect any transient sources.

 RA (J2000) | DEC (J2000)  | MJD             | Limiting Magnitude
06:06:00.86 | -32:47:28.55 | 58613.9634598   |  21.3
05:51:48.47 | -31:28:21.43 | 58613.9697709   |  21.6
05:55:10.63 | -32:04:19.33 | 58613.9807059   |  21.7
05:59:44.38 | -32:54:47.42 | 58613.9842936   |  21.7
06:07:49.70 | -33:30:45.58 | 58613.9875954   |  21.7
05:51:48.38 | -31:21:10.17 | 58613.9908477   |  21.6
05:59:08.22 | -32:04:26.44 | 58613.9943430   |  21.7
05:50:37.29 | -32:18:50.38 | 58613.9979812   |  21.6
05:52:16.38 | -33:38:02.52 | 58614.0014418   |  21.6
05:58:02.52 | -34:06:49.28 | 58614.0052499   |  21.6
05:50:31.75 | -33:45:17.44 | 58614.0084120   |  21.5
05:53:24.15 | -34:21:14.39 | 58614.0116271   |  21.6
05:47:57.74 | -30:23:38.45 | 58614.0149357   |  21.5
05:51:38.62 | -34:28:28.46 | 58614.0181796   |  21.5
05:52:18.83 | -32:47:42.32 | 58614.0222639   |  21.5
05:55:44.58 | -32:04:30.50 | 58614.0257728   |  21.4
05:52:47.96 | -34:42:54.55 | 58614.0289522   |  21.5
05:59:41.23 | -31:42:57.35 | 58614.0323124   |  21.4
06:00:24.86 | -35:11:38.23 | 58614.0357864   |  21.4
06:09:01.75 | -33:52:31.40 | 58614.0391655   |  21.4
06:11:07.09 | -32:33:16.39 | 58614.0432460   |  21.4

We did not cover the location of any candidate identified in Andreoni et al. (GCN #24467
Not found
 
 
).

We would like to thank Jay Elias for facilitating these Target of Opportunity observations.

Please direct all communication related to this circular to Charlie Kilpatrick (cdkilpat@ucsc.edu).