SN 2018fip
RA/DEC (2000)
16:54:15.75 -54:02:39.27
253.565625 -54.044242
Type
SN Ic-BL
Redshift
0.117
Source Group
MASTER
Discovery Date
2018-07-28 17:29:38
TNS AT
Y
Public
Y
End Prop. Period
2018-08-25
Discovery Mag
14.5
Filter
Clear-
Discoverer/s
Vladimir Lipunov
Spectra
No Data
Light Curves
FilterTel / InstObs-date rangePhotometry
Clear-Other_Other2018-07-28 17:29:38 - 2018-07-28 17:29:381
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
342952018-07-28 17:29:3814.5OtherClear-Other_Other10MASTERInstrument: MASTER MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South African Astronomical Observatory PI: Prof.Lipunov Units: MASTER unfiltered (clear) photometry is calibrated by USNO-B1 as: W=0.2B+0.8R R2,B2 (in their absenсe :R1,B1)
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
218472018-08-23 09:26:06lipunovVladimir LipunovMASTER16:54:15.75-54:02:39.272018-07-28 17:29:3814.5Clear-OtherMASTER OT J165415.75-540239.27MASTER2018-08-25GRB 180828A optical counterpart discovered by MASTER TITLE: GCN CIRCULAR NUMBER: 23048 SUBJECT: GRB 180728A: MASTER OT (= new object) detection DATE: 18/07/28 18:33:41 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, N.Tiurina, D.Vlasenko, V.Kornilov, A.Kuznetsov, V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa,V.Vladimirov, Lomonosov Moscow State University,SAI D. Buckley, South African Astronomical Observatory (SAAO) R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias (IAC) A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA) H.Levato, Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University (ISU) A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University (BSPU) MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was pointed to the GRB180728A 22 sec after notice time and 38 sec after trigger time at 2018-07-28 17:29:38 UT in two polarizations. On our first (10s exposure) set we found new optical object (transient) within SWIFT error-box (ra=253.567 dec=-54.0308 r=0.05) : MASTER OT J165415.75-540239.27 RA, DEC = 16h 54m 15.75s , -54d 02m 39.27s m ~ 14.5 We see a surprising automatic light curve when the source has risen to constant magnitude during first ~30 minutes! The observations made on zenit distance = 28 degrees, galaxy latitude b = -7 degree. The moon (99 % bright part) is 11 degrees above the horizon. The distance between moon and object is 61 The sun altitude is -19.8 degree. The object can be observed till 2018-07-29 05:17:09 The message may be cited. ========================== TITLE: GCN CIRCULAR NUMBER: 23050 SUBJECT: GRB 180728A: MASTER OT J165415.75-540239.27 is the Optical Counterpart of GRB DATE: 18/07/28 19:35:21 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, N.Tiurina, D.Vlasenko, V.Kornilov, A.Kuznetsov, V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov, Lomonosov Moscow State University,SAI D. Buckley, South African Astronomical Observatory (SAAO) R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias (IAC) A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA) H.Levato, Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University (ISU) A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University (BSPU) MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) was detected new optical object (Lipunov et al., GCN Circ #23048) MASTER OT J165415.75-540239.27 at Swift XRT position (Starling et al., GCN #23046; Perri et al., GCN #23049;): RA, DEC = 16h 54m 15.75s , -54d 02m 39.27s Error ~1 arcsec We see a gradual attenuation of the OT on an automatic light curve. Thus, the transient is an optical counterpart of the gamma-ray burst GRB 180728A. The automatic light curve is available at http://observ.pereplet.ru/images/MASTER_OT_J165415.75-540239.27.jpg The message may be cited. TITLE: GCN CIRCULAR NUMBER: 23143 SUBJECT: GRB 180728A: MASTER early polarization and 19 days monitoring DATE: 18/08/16 20:33:39 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, N.Tiurina, D.Vlasenko, V.Kornilov, A.Kuznetsov, V.Chazov, I. Gorbunov, D.Zimnukhov, D.Kuvshinov, P.Balanutsa,V.Vladimirov, Lomonosov Moscow State University,SAI D. Buckley, South African Astronomical Observatory (SAAO) R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias (IAC) A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA) H.Levato, Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University (ISU) A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University (BSPU) MASTER Global Robotic Net ( Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) inspected GRB 180728A (SwiftBAT GRB discovery : Starling et al. GCN 23046; MASTER optical counterpart discovery: Lipunov et al. GCN 23048;GCN23050; SwiftXRT: Perri et al. GCN 23049; Redshift, VLT: Rossi et al. GCN 23055; SN discovery,VLT: Izzo et al. GCN 23142). every night since the discovery. There are unfiltered limits at MASTER images and absolute magnitude of SN ( Izzo et al. GCN 23142) for Omega_Vac = 0.7 and H_0 = 70 km/s/Mpc and Galactic extinction 0.1 for our red ccd: Date_Time,UT | Exp,s | MASTER-Site | m_lim| M 2018-07-29 21:18:37.092 | 2340 | MASTER-SAAO | 21.8 | -16.3 2018-07-30 21:07:24.839 | 1440 | MASTER-SAAO | 20.8 | -17.3 2018-07-30 21:07:24.912 | 1440 | MASTER-SAAO | 21.4 | -16.7 2018-08-01 19:11:32.906 | 1620 | MASTER-SAAO | 20.9 | -17.2 2018-08-01 19:15:07.977 | 1620 | MASTER-SAAO | 20.9 | -17.2 2018-08-02 17:03:40.025 | 3780 | MASTER-SAAO | 20.8 | -17.2 2018-08-02 18:12:49.446 | 3960 | MASTER-SAAO | 20.9 | -17.2 2018-08-03 17:53:21.097 | 4140 | MASTER-SAAO | 20.8 | -17.3 2018-08-03 17:53:21.347 | 4140 | MASTER-SAAO | 21.1 | -17.0 2018-08-03 23:21:10.842 | 3420 | MASTER-OAFA | 20.6 | -17.5 2018-08-04 17:05:35.120 | 2700 | MASTER-SAAO | 20.9 | -17.2 2018-08-04 17:12:46.879 | 2880 | MASTER-SAAO | 20.8 | -17.3 2018-08-04 23:07:09.154 | 720 | MASTER-OAFA | 20.5 | -17.6 2018-08-05 22:18:29.225 | 3240 | MASTER-SAAO | 20.8 | -17.3 2018-08-05 22:22:04.704 | 3240 | MASTER-SAAO | 21.1 | -17.0 2018-08-05 23:08:46.934 | 1260 | MASTER-OAFA | 21.5 | -16.5 2018-08-06 18:46:19.565 | 3600 | MASTER-SAAO | 20.8 | -17.3 2018-08-06 18:46:19.605 | 3600 | MASTER-SAAO | 20.8 | -17.3 2018-08-07 00:26:41.653 | 900 | MASTER-OAFA | 20.4 | -17.7 2018-08-07 03:30:36.096 | 2520 | MASTER-OAFA | 20.6 | -17.5 2018-08-07 17:15:34.447 | 3780 | MASTER-SAAO | 20.9 | -17.2 2018-08-07 18:23:07.857 | 3780 | MASTER-SAAO | 21.7 | -16.4 2018-08-08 17:59:05.042 | 4140 | MASTER-SAAO | 20.8 | -17.3 2018-08-08 18:02:42.597 | 4140 | MASTER-SAAO | 20.9 | -17.2 2018-08-08 23:11:34.904 | 3240 | MASTER-OAFA | 21.9 | -16.2 2018-08-09 18:55:17.807 | 540 | MASTER-SAAO | 20.8 | -17.2 2018-08-09 18:58:54.517 | 540 | MASTER-SAAO | 20.8 | -17.2 2018-08-09 23:04:26.723 | 3240 | MASTER-OAFA | 20.5 | -17.5 2018-08-10 17:00:41.943 | 2520 | MASTER-SAAO | 20.9 | -17.1 2018-08-11 00:08:05.570 | 4500 | MASTER-OAFA | 20.7 | -17.3 2018-08-11 18:43:29.720 | 7020 | MASTER-SAAO | 20.9 | -17.1 2018-08-11 23:12:32.140 | 3240 | MASTER-OAFA | 20.6 | -17.4 2018-08-12 19:46:57.192 | 7560 | MASTER-SAAO | 22.1 | -15.9 2018-08-12 19:46:57.246 | 7560 | MASTER-SAAO | 20.9 | -17.1 2018-08-12 23:18:02.053 | 3240 | MASTER-OAFA | 19.8 | -18.2 2018-08-13 07:43:55.504 | 3420 | MASTER-OAFA | 21.2 | -16.8 We have carried out preliminary photometry of MASTER early observations (Lipunov et al. GCN 23048; GCN23050;) also we report about considerable polarization of optical radiation of gamma burst the first minute after its beginning. This message can be cited.
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
26092018-08-27 23:14:17dmalesaniJ. Selsing (DAWN/NBI), L. Izzo (HETH/IAA-CSIC), A. Rossi (INAF/OAS), D. B. Malesani (DAWN/NBI and DARK/NBI)STARGATESN Ic-BL0.117STARGATEOptical afterglow of GRB 180728A (Starling et al., GCN 23046), initially discovered by Lipunov et al. (GCN 23048). Several spectra were acquired from our group, as described by Izzo et al. (GCN 23142), showing the emergence of a supernova from the GRB afterglow. The spectrum uploaded here shows a convincing match with the type-Ic SN 2002ap, thus allowing a robust classification of this SN as a broad-lined Type-Ic SN (Selsing et al., GCN 23181).

Comments

MASTER coadded image of GRB180728a at 12 Aug 2018