[vsnet-grb-info 24120] LIGO/Virgo S191109d: No significant candidates in FRAM-TAROT-GRANDMA observations
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Mon Nov 11 07:13:30 JST 2019
TITLE: GCN CIRCULAR
NUMBER: 26219
SUBJECT: LIGO/Virgo S191109d: No significant candidates in FRAM-TAROT-GRANDMA observations
DATE: 19/11/10 22:12:12 GMT
FROM: Nelson Christensen at Obs.de la Cote dAzur,Nice <nelson.christensen at oca.eu>
N. Christensen (Artemis), M. Coughlin (Caltech), W. Lin (THU), C.
Stachie (Artemis), S. Karpov, M. Masek, M. Prouza (FZU), M. Boer
(Artemis), L. Eymar (Artemis), A. Klotz (IRAP), K. Noysena (Artemis,
IRAP), S. Antier (APC), A. Coleiro (APC), D. Corre (LAL), D. A. Kann
(HETH/IAA-CSIC), D.Coward (OzGrav-UWA), J.G. Ducoin (LAL), B. Gendre
(OzGrav-UWA), N.Kochiashvili (Iliauni), P. Hello (LAL), C. Lachaud
(APC), N. Leroy (LAL), C. C. Thoene (HETH/IAA-CSIC), D. Turpin (NAOC),
X. Wang (THU)
report on behalf of the FRAM network, TAROT network
and GRANDMA collaborations:
We performed tiled observations of the LIGO/Virgo S191109d event with
the FRAM-Auger (FRAM-A), FRAM-CTA-N (FRAM-C), TAROT-Reunion (TRE),
TAROT-Calern (TCA) and TAROT-Chili (TCH) telescopes operating
in the r-band and visible located respectively at
Pierre Auger observatory (Malargue, Argentina), Roque de los Muchachos
observatory (La Palma, Spain), Les Makes astronomical
observatory, the Cote d'Azur observatory and La Silla ESO
observatory (LaS/ESO).
The observation started on 11/09/19 01:32:55 UTC for FRAM-CTA-N which
corresponds approximately to 26 minutes after the GW trigger time.
The observation started on 11/09/19 06:45:28 UTC for FRAM-Auger which
corresponds approximately to 339 minutes after the GW trigger time.
The observation started on 11/09/19 21:21:00 UTC for TRE which
corresponds approximately to 1214 minutes after the GW trigger time.
The observation started on 11/09/19 02:09:58 UTC for TCA which
corresponds approximately to 63 minutes after the GW trigger time.
The observation started on 11/10/19 06:34:37 UTC for TCH which
corresponds approximately to 1768 minutes after the GW trigger time.
We performed the following joint tiled observations [1]:
+-------+------------+------------+---------+---------+---------+
| Tele | TStart | TEnd | RA | DEC | Proba |
| scope | [UTC] | [UTC] | [deg] | [deg] | [%] |
|-------+------------+------------+---------+---------+---------|
|FRAM-A | 2019-11-09 | 2019-11-09 | 192.906 | -44.27 | 0.1 |
| | 06:45:28 | 06:49:55 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 193.103 | -45.243 | 0.1 |
| | 06:50:30 | 06:54:57 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 188.83 | -44.27 | 0.1 |
| | 06:55:33 | 07:00:00 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 200 | -45.243 | 0.1 |
| | 07:07:59 | 07:12:26 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 198.621 | -45.243 | 0.1 |
| | 07:13:01 | 07:17:28 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 194.483 | -45.243 | 0.1 |
| | 07:18:04 | 07:22:31 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 196.981 | -44.27 | 0.1 |
| | 07:23:07 | 07:27:34 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 197.241 | -45.243 | 0.1 |
| | 07:28:09 | 07:32:36 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 198.34 | -44.27 | 0.1 |
| | 07:33:11 | 07:37:38 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 195.623 | -44.27 | 0.2 |
| | 07:38:13 | 07:42:40 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 195.862 | -45.243 | 0.1 |
| | 07:43:14 | 07:47:41 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 205.517 | -45.243 | 0.2 |
| | 07:48:20 | 07:52:47 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 202.415 | -44.27 | 0.1 |
| | 07:53:21 | 07:57:48 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 203.774 | -44.27 | 0.2 |
| | 07:58:24 | 08:02:51 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 202.759 | -45.243 | 0.2 |
| | 08:03:26 | 08:07:53 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 201.379 | -45.243 | 0.2 |
| | 08:08:27 | 08:12:54 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 204.138 | -45.243 | 0.2 |
| | 08:13:30 | 08:17:57 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 201.057 | -44.27 | 0.1 |
| | 08:18:32 | 08:22:59 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 205.132 | -44.27 | 0.1 |
| | 08:23:34 | 08:28:01 | | | |
|FRAM-A | 2019-11-09 | 2019-11-09 | 199.698 | -44.27 | 0.1 |
| | 08:28:37 | 08:33:04 | | | |
|-------+------------+------------+---------+---------+---------|
|FRAM-C | 2019-11-09 | 2019-11-09 | 132.926 | 4.045 | 0.03 |
| | 01:32:55 | 02:36:07 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 137.472 | -5.243 | 0.03 |
| | 01:37:17 | 04:08:52 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.714 | -2.833 | 0.03 |
| | 01:56:58 | 02:01:04 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 134.788 | -0.649 | 0.03 |
| | 02:01:20 | 02:05:26 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.874 | -2.409 | 0.03 |
| | 02:05:53 | 02:09:59 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.324 | -1.086 | 0.03 |
| | 02:10:14 | 02:14:20 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.662 | -1.96 | 0.03 |
| | 02:14:34 | 02:18:40 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.549 | -1.523 | 0.02 |
| | 02:18:54 | 02:23:00 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.324 | -0.212 | 0.03 |
| | 02:23:15 | 02:27:21 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 134.788 | 0.874 | 0.03 |
| | 02:27:36 | 02:31:42 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 133.202 | 3.383 | 0.03 |
| | 02:36:33 | 02:40:39 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 133.202 | 2.846 | 0.03 |
| | 02:40:54 | 02:45:00 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 133.914 | 0.986 | 0.03 |
| | 02:45:21 | 02:49:27 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 133.914 | 1.973 | 0.03 |
| | 02:49:43 | 02:53:49 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 135.549 | -0.649 | 0.03 |
| | 02:54:05 | 02:58:11 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 134.451 | 0.225 | 0.03 |
| | 02:58:27 | 03:02:33 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 137.976 | -6.878 | 0.03 |
| | 03:51:16 | 03:55:22 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 137.415 | -5.891 | 0.03 |
| | 03:55:38 | 03:59:44 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 136.429 | -3.707 | 0.03 |
| | 04:00:19 | 04:04:25 | | | |
|FRAM-C | 2019-11-09 | 2019-11-09 | 136.264 | -3.27 | 0.03 |
| | 04:09:18 | 04:13:23 | | | |
|-------+------------+------------+---------+---------+---------|
| TRE | 2019-11-09 | 2019-11-09 | 135 | 0 | 1.4 |
| | 21:21:00 | 21:27:23 | | | |
| TRE | 2019-11-09 | 2019-11-10 | 129.767 | 12.273 | 1.1 |
| | 21:40:11 | 00:16:41 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 142.326 | -12.273 | 1.1 |
| | 21:53:22 | 21:59:39 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 148.5 | -24.545 | 1.1 |
| | 22:05:48 | 22:12:05 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 132.414 | 8.182 | 1.1 |
| | 22:18:57 | 22:25:21 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 155.676 | -32.727 | 1 |
| | 22:31:13 | 22:37:31 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 140.69 | -8.182 | 1 |
| | 22:44:28 | 22:50:51 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 141.429 | -16.364 | 1 |
| | 22:57:03 | 23:03:20 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 135 | 4.091 | 0.9 |
| | 23:10:02 | 23:16:19 | | | |
| TRE | 2019-11-09 | 2019-11-09 | 185.806 | -45 | 1.6 |
| | 23:44:52 | 23:51:15 | | | |
|-------+------------+------------+---------+---------+---------|
| TCA | 2019-11-09 | 2019-11-10 | 126.664 | 14.867 | 0.2 |
| | 02:09:58 | 02:46:56 | | | |
| TCA | 2019-11-09 | 2019-11-10 | 129.459 | 15.298 | 0.2 |
| | 02:16:42 | 05:23:09 | | | |
| TCA | 2019-11-09 | 2019-11-10 | 126.758 | 13.012 | 0.1 |
| | 03:40:47 | 01:47:23 | | | |
| TCA | 2019-11-09 | 2019-11-10 | 128.009 | 16.723 | 0.2 |
| | 04:33:53 | 05:10:44 | | | |
| TCA | 2019-11-09 | 2019-11-10 | 126.084 | 16.723 | 0.2 |
| | 22:38:39 | 03:45:32 | | | |
| TCA | 2019-11-09 | 2019-11-10 | 126.167 | 20.434 | 0.2 |
| | 22:58:04 | 04:04:42 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 137.565 | -0.928 | 0.2 |
| | 01:02:28 | 03:38:47 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 132.027 | 0.022 | 0.2 |
| | 01:21:38 | 03:57:57 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 144.385 | -15.298 | 0.2 |
| | 02:20:50 | 04:57:14 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 126.756 | 18.579 | 0.2 |
| | 03:06:18 | 03:12:38 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 128.991 | 7.445 | 0.2 |
| | 03:25:40 | 03:31:59 | | | |
| TCA | 2019-11-10 | 2019-11-10 | 145.227 | -24.102 | 0.1 |
| | 04:05:08 | 04:07:08 | | | |
|-------+------------+------------+---------+---------+---------|
| TCH | 2019-11-10 | 2019-11-10 | 144.95 | -17.273 | 0.3 |
| | 06:34:37 | 06:40:55 | | | |
| TCH | 2019-11-10 | 2019-11-10 | 196.161 | -43.595 | 0.4 |
| | 08:12:47 | 08:19:06 | | | |
| TCH | 2019-11-10 | 2019-11-10 | 184.931 | -42.252 | 0.3 |
| | 08:38:39 | 08:44:58 | | | |
+-------+------------+------------+---------+---------+---------+
TStart and TEnd refers respectively to the time of the first and last
exposure for a given tile. Observations are not necessarily continuous
in this interval.
The Probability refers to the 2D spatial probability of the GW skymap
enclosed in a given tile.
Each FRAM-Auger tile is 1.0x1.0 degrees and 0.45x0.45 degrees for
FRAM-CTA-N.
Each TRE tile is 4.2x4.2 degrees and 1.9x1.9 degrees for TCA and TCH.
These observations cover about 17% of the cumulative probability of the
Bayestar skymap available on Nov 9, 2019 01:15:21 UTC.
The typical limiting magnitude in R (AB mode) is 16.0 and 18.0 for a
120 s exposure for FRAM-CTA-N and FRAM-Auger, respectively.
The typical limiting magnitude in AB mode is 17.0 and 18.0
for a 60.0 s exposure for TRE and TCA/TCH, respectively.
The coverage map is available at:
https://grandma-owncloud.lal.in2p3.fr/index.php/s/utGS2Zigv2qGp8S
No significant transient candidates were found during our low latency
analysis [2,3].
GRANDMA (Global Rapid Advanced Network Devoted to the Multi-messenger
Addicts) is a network of robotic telescopes connected all over the
world with both photometry and spectrometry capabilities for Time-
domain Astronomy [2].
Details on the FRAM and TAROT telescopes are available on the GRANDMA
web pages https://grandma.lal.in2p3.fr/.
[1] M. W Coughlin et al., MNRAS 2019, doi.org/10.1093/mnras/stz2485
[2] S. Antier et al., MNRAS 2019, arXiv:1910.11261, 2019
[3] K. Noysena et al., ApJ 2019, arXiv:1910.02770
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