{
  "bibcode": "2019GCN.26558....1D",
  "body": "J.-G. Ducoin (LAL), D. Turpin (AIM-CEA), S. Antier (APC), B. Chabert \n(IRAP), D. Corre (LAL), A. Klotz (IRAP), M. Boer (Artemis),\nN. Christensen (Artemis), M. Coughlin (Caltech), D. Coward (OzGrav-UWA), \nB. Gendre (OzGrav-UWA), P. Hello (LAL), D. A. Kann (HETH/IAA-CSIC), N.\nKochiashvili (Iliauni), C. Lachaud (APC), N. Leroy (LAL), C. Thoene\n(HETH/IAA-CSIC), D. Turpin (AIM-CEA), X. Wang (THU)\n\nreport on behalf of the GRANDMA collaboration.\n\nWe performed galaxy-targeted observations of the LIGO/Virgo event\nS191213g event (GCN #26402) with the amator astronomers\nof GRANDMA citizen science program \"kilonova-catcher\" created\nby CNRS/IRAP and CNRS/LAL [1].\n\nDenis St-Gelais and Marc Serrau performed galaxy-targeted\nobservations in clear filter of the S191213g event.\nDenis St-Gelais imaged 12 fields with a 36-cm telescope located\nin Quer��taro (Mexico). Marc Serrau imaged 1 field with a 28-cm telescope\nlocated near Haute Provence Observatory (France). The typical magnitude\nis 19 for both sites with an exposure time of 26 min and 76 min\nrespectively.\n\nThe target galaxies are selected from the list of potential host\ngalaxies from the Mangrove catalog [2] in the 90% credible area of the\nlocalization region of the LIGO/Virgo GW event (LALInference skymap \ncreated on 2019-12-14 00:59:57 UTC).\n\n\nNo significant transient candidates were found during our analysis [3].\n\nThe coverage map is available at:\nhttps://grandma-owncloud.lal.in2p3.fr/index.php/s/P3cuh5eZt46lNIs/download\n\n\nThe list of the galaxies we observed is given in the table below.\nTStart and TEnd refers respectively to the time of the first and last\nexposure for a given galaxy. Observations are not necessarily continuous\nin this interval.\n\n+----------+----------+-----------------------+--------+--------+------+\n|TStart    | TEnd     | Galaxy                | RA     | DEC    | Dist.|\n|[UTC]     | [UTC]    | name                  | [deg]  | [deg]  | [Mpc]|\n|----------+----------+-----------------------+--------+--------+------|\n|2019-12-14|2019-09-03|UGC 02249              |41.849  |45.531  |114.81|\n| 20:20:35 | 09:41:35 |                       |        |        |      |\n|2019-12-15|2019-09-02|UGC 02249              |41.849  |45.531  |114.81|\n| 01:24:10 | 02:40:10 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASS 03011222+4454285 |45.301  |44.908  |191.45|\n| 01:54:13 | 02:10:13 |                       |        |        |      |\n|2019-12-15|2019-09-03|PGC 090026             |86.831  |-6.836  |95.14 |\n| 04:36:59 | 04:52:59 |                       |        |        |      |\n|2019-12-15|2019-09-03|NGC 2076               |86.698  |-16.782 |33.70 |\n| 05:05:49 | 05:21:49 |                       |        |        |      |\n|2019-12-15|2019-09-03|NGC 2196               |93.040  |-21.806 |36.82 |\n| 05:33:12 | 05:49:12 |                       |        |        |      |\n|2019-12-15|2019-09-03|NGC 2206               |93.999  |-26.765 |85.85 |\n| 06:00:22 | 06:16:22 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASX 06483359+0145387 |102.140 |1.761   |126.80|\n| 06:57:12 | 07:11:12 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASX 06443904+0112542 |101.163 |1.215   |42.13 |\n| 07:21:59 | 07:37:59 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASX 06464860+0041324 |101.703 |0.692   |176.15|\n| 07:49:39 | 08:05:39 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASX 06404238-0059116 |100.177 |-0.987  |152.74|\n| 08:28:46 | 08:44:46 |                       |        |        |      |\n|2019-12-15|2019-09-03|2MASX 06501768-0251397 |102.574 |-2.861  |32.24 |\n| 08:59:00 | 09:15:00 |                       |        |        |      |\n|2019-12-15|2019-09-03|PGC 983153             |87.658  |-10.042 |94.94 |\n| 09:26:45 | 09:42:45 |                       |        |        |      |\n+----------+----------+-----------------------+--------+--------+------+\n\n\nGRANDMA (Global Rapid Advanced Network Devoted to the Multi-messenger\nAddicts) is a network of robotic telescopes connected all over the\nworld with both photometry and spectrometry capabilities for\nTime-domain Astronomy (https://grandma.lal.in2p3.fr/). Details on the\nGRANDMA web pages and the citizen science program \"kilonova-catcher\"  \nare available on https://grandma-kilonovacatcher.lal.in2p3.fr/\n\n[1] https://grandma-kilonovacatcher.lal.in2p3.fr\n[2] J.-G. Ducoin et al., arXiv:1911.05432\n[3] S. Antier et al., MNRAS 2019, https://doi.org/10.1093/mnras/stz3142",
  "circularId": 26558,
  "createdOn": 1577033921000,
  "email": "ducoin@lal.in2p3.fr",
  "subject": "LIGO/Virgo S191213g : No significant candidates found in GRANDMA citizen science observations",
  "submitter": "Jean-Gregoire Ducoin at LAL  <ducoin@lal.in2p3.fr>",
  "eventId": "LIGO/Virgo S191213g"
}