{
  "bibcode": "2015GCN.18786....1S",
  "body": "K. Smith, S. Smartt D. Wright, (Queen���s University Belfast), K. C. Chambers,\nM. E. Huber, A. S. B. Schultz (IfA, University of Hawaii), M. Coughlin (Harvard), L. Denneau,\nH. Flewelling, A. Heinze, R. Kotak (QUB), E. A. Magnier, N. Primak, A. Rest (STScI),  \nA. Sherstyuk (IfA), B. Stalder (IfA), C. W. Stubbs (Harvard), J. Tonry, C. Waters (IfA),  \nD. Young (QUB)\n\n\nFollowing our report of Pan-STARRS observations of the northern arc,\n(Chambers et al. GCN 18735), we report the following transients. All objects\nwere identified in difference imaging with respect to the Pan-STARRS\n3Pi all sky i-band image (see Magnier et al. 2013, ApJS 205, 20 ;\nHuber et al. 2015,  ATel 7153) and standard filtering procedures combined with\nmachine learning (Wright et al. 2015, MNRAS, 449, 451). We have removed obvious\nmoving objects, variable star and AGN/QSO candidates as far as possible through\ncross-matching with known catalogues and the MPC. Further refined cross-matches are noted\nbelow. The rest are transients which are not obviously associated with a single\nstar or a galaxy core. \n\nAll magnitudes are in the Pan-STARRS i-band (AB mags), and the discovery\ndate is UTC. Targets are sorted by time of discovery.  Approximately 10-15\nof the brighter targets are queued for observing with Gemini, Magellan, PESSTO,\nand the Liverpool Telescope. Pan-STARRS has observed the field\nas noted in (Chambers et al. GCN 18735) on three nights from\n(20151228, 20151229, 20151230) and plans another 5 epochs between\nnow and 2016 01 25.\n\nSome more specific notes \n\n(1)  this was reported as iPTF15fgy Cenko et al. (GCN 18762)\nbut we have a detection 24 days previously on 57360 by PSST (Huber et al. 2015).\n(2) discovered as PSNJ02344555+1820390 before the G211117 trigger\n(3) Lipunov et al.  (GCN 18768) report iPTF15fel as being visible in MASTER\nimages more than 40 days before the G211117 trigger\n(4) Faint transient, or more likely variable, in NGC1156 which is a very nearby\ngalaxy (7Mpc). At M_i = -9, this is most likely an LBV or S-Doradus type variability\nof a massive star and indeed the candidate is coincident with a bright, stellar\nknot.\n\nWe welcome notification of other cross-matches that we may have omitted, or\nduplications that we may have missed.\n\nName        RA (J2000)   Dec (J2000)  Disc. Date   Disc. MJD  Disc Mag\nPS15dcq     03 22 55.83  +34 59 23.6  20151228.29  57384.29    19.99 (1) iPTF15fgy\nPS15dov     03 43 57.36  +39 17 43.7  20151228.32  57384.32    19.73 4.2��� from SN2003ih\nPS15dot     02 11 55.69  +13 28 17.8  20151228.34  57384.34    20.97\nPS15coh     02 15 58.45  +12 14 13.6  20151228.34  57384.34    17.72 ASASSN-15rw, iPTF15fev\nPS15dow     02 19 42.20  +14 09 54.7  20151228.34  57384.34    20.22\nPS15csf     02 26 02.24  +17 03 40.4  20151228.35  57384.35    18.68 MASTER OT J022037.36+170217.5\nPS15dom     02 34 45.62  +18 20 37.7  20151228.35  57384.35    19.01 (2) PSNJ02344555+1820390, iPTF15fdv\nPS15don     02 37 11.44  +19 03 20.2  20151228.35  57384.35    20.47\nPS15dox     02 40 15.05  +22 32 12.1  20151228.38  57384.38    19.23\nPS15doy     02 47 54.16  +21 46 24.0  20151228.38  57384.38    20.75\nPS15dpq     03 09 12.74  +27 31 16.9  20151228.39  57384.39    18.84 (3) iPTF15fel\nPS15dpa     02 57 56.02  +28 53 37.1  20151228.40  57384.40    19.51\nPS15dpp     03 00 39.86  +28 15 25.4  20151228.40  57384.40    20.63 likely stellar\nPS15dop     03 17 29.58  +29 34 09.2  20151228.40  57384.40    20.01 probable AGN\nPS15dpe     05 44 42.66  +52 24 57.9  20151228.43  57384.43    19.44\nPS15dpl     05 47 45.39  +53 36 32.4  20151228.43  57384.43    19.34\nPS15dpj     05 08 12.38  +51 37 10.2  20151228.44  57384.44    18.45\nPS15dpd     05 09 58.63  +50 47 09.4  20151228.44  57384.44    20.34\nPS15dpi     03 36 41.65  +35 57 56.4  20151228.52  57384.52    17.62 RR Lyrae; CSS J033641.5+355756\nPS15dpn     02 32 59.75  +18 38 07.0  20151229.23  57385.23    20.69\nPS15dpf     02 49 32.57  +21 47 09.4  20151229.24  57385.24    20.69\nPS15doz     02 53 41.68  +27 29 57.8  20151229.25  57385.25    20.69\nPS15dpo     02 59 49.56  +25 10 30.4  20151229.25  57385.25    20.55 probable AGN/QSO\nPS15dpc     03 55 46.16  +38 52 49.6  20151229.27  57385.27    20.95\nPS15dqc     05 51 13.43  +52 28 18.7  20151229.29  57385.29    21.16\nPS15dpz     02 40 33.01  +23 00 10.8  20151229.32  57385.32    21.15\nPS15dpb     03 42 23.40  +39 14 40.4  20151229.36  57385.36    20.20\nPS15dpk     05 09 35.10  +50 09 08.7  20151229.38  57385.38    19.66\nPS15dpg     03 17 18.88  +32 20 06.9  20151229.41  57385.41    20.86\nPS15dps     03 22 31.49  +34 36 36.6  20151229.43  57385.43    20.41\nPS15dpr     03 16 12.16  +31 04 01.3  20151229.46  57385.46    19.78\nPS15dph     03 24 15.04  +30 56 20.1  20151229.46  57385.46    20.17\nPS15dou     06 03 38.73  +54 41 12.1  20151229.56  57385.56    20.20\nPS15dpx     06 04 35.54  +53 35 25.8  20151229.56  57385.56    20.76\nPS15dpm     06 19 54.15  +54 18 10.3  20151229.56  57385.56    20.48\nPS15dpt     02 07 34.96  +11 03 25.2  20151230.22  57386.22    20.64\nPS15dpy     02 28 22.75  +13 59 19.3  20151230.22  57386.22    21.31\nPS15dpu     02 40 41.35  +16 49 52.0  20151230.22  57386.22    17.26 ASASSN-15un\nPS15dqa     02 59 41.20  +25 14 12.2  20151230.24  57386.24    20.93 (4) in NGC1156 (7Mpc)\nPS15dpw     04 10 16.52  +43 35 22.8  20151230.27  57386.27    19.29\nPS15dqd     05 56 14.60  +52 51 55.2  20151230.37  57386.37    19.92\nPS15dqe     06 05 26.88  +54 09 11.3  20151230.37  57386.37    21.51\nPS15dqb     03 28 34.85  +31 59 08.2  20151230.43  57386.43    19.93\nPS15dpv     03 40 02.91  +36 07 52.2  20151230.43  57386.43    20.93",
  "circularId": 18786,
  "createdOn": 1451583521000,
  "email": "s.smartt@qub.ac.uk",
  "subject": "LIGO/Virgo G211117: 44 transients from Pan-STARRS data during 2015-12-28/30",
  "submitter": "S. J. Smartt at Queens U Belfast  <s.smartt@qub.ac.uk>",
  "eventId": "LIGO/Virgo G211117"
}