TITLE: GCN CIRCULAR NUMBER: 25573 SUBJECT: GRB 190829A:: Global MASTER-net optical clear and polarization observations scheduler and some spiculations DATE: 19/08/30 11:29:38 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, F.Balakin, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, A.Chasovnikov, V.Topolev, A.Posdnyakov (Lomonosov Moscow State University, SAI, Physics Department), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) was pointed to the GRB190829A (Fermi GCN 25551 ) 55 sec after Swift trigger time (Dichiara et al., GCN 25552) at 2019-08-29 19:57:39 UT. The 5-sigma image limit has been about 14.5 mag MASTER-Kislovodsk robotic telescope was pointed to the GRB190829A by FERMI GBM coordinates 15 s after trigger time at 2019-08-29 19:56:59 in two polarizations. The Swift BAT position was 2 degree below horison at this time on MASTER-Kislovodsk in two polarizations. The first image at Swift BAT position was obtained 909 s after trigger at 2019-08-29 20:11:53, but due to extrimelly high zenith distance (89.5 degree) this images has no stars. The first images with stars was obtained 1239 s after trigger at 2019-08-29 20:17:23 (zenith distance 88.7). The both FERMI-GBM and Swift BAT position was below horisont at MASTER-SAAO, MASTER-Tavrida and MASTER-OAFA sites. Thus, automatic pointing was not possible. MASTER-SAAO robotic telescope located in South Africa (South African Astronomical Observatory) was pointed to the GRB190829A errorbox 6757 sec after trigger time at 2019-08-29 21:49:21 UT, with upper limit up to 21.3 mag. The observations began at zenit distance = 76 deg. The sun altitude is -64.5 deg. MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) was pointed to the GRB190829.83 errorbox 6766 sec after trigger time at 2019-08-29 21:49:30 UT, with upper limit up to 18.5 mag. The observations began at zenit distance = 79 deg. The sun altitude is -36.7 deg. MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) joined to the GRB190829A observations 27862 sec after trigger time at 2019-08-30 03:41:06 UT, with upper limit up to 19.8 mag. The observations began at zenit distance = 77 deg. The sun altitude is -64.8 deg. Observation with the MASTER-OAFA telescope continues. Swift team noted the presence of a galaxy SDSS J025810.28-085719.2 (PGC997094) with z=0.07914 centered at a distance of 10 arcseconds from the XRT location. The aftergrlow was detected indipendingly by ( Xu et al. GCNC 25555, Lipunov et al. GCNC 25558). We see object with 3.1E 7.5S arcsec ofsset from the galaxy center. Optical afterglow spectrum displays a red continuum (Valeev et al., 25565) consistent with the NOT results (Heintz et al. GCNC 25563) at redshift z = 0.0785 +/- 0.005 which coincided with PGC Galaxy. Very late brightening (up to 1 hour after trigger) in our data, says about the unusual nature of this phenomenon. By the way, after the maximum of the brightness of the brightness decreases linearly with time! Obviously, this fact indicates the affinity of the galaxy and the gamma-evant. If a very probable connection between the gamma-ray burst and the nearby galaxy PGC997094 at a distance of ~ 320 Megaparsec and the lack of an LVC alert can make an important conclusion (VML): as expected, the collapse of the progenitor core proceeds through the slow (on the scale of the radial fall time) compression of the quasicylindrical object - the spinar (Lipunov & Gorbovskoy, 2007, ApJ, vol. 665, 97; Lipunov & Gorbovskoy, MNRAS, 2008, vol. 383, 1397; Lipunova et al., MNARS, 2009, vol. 397; 1695 . The one of the automatic detection images is available at master.sai.msu.ru/static/OT/GRB190829.jpg You can see the tools of the MASTER robot in Kislovodsk. From left to right: the image corresponds to the specified time, the next frame of the DSS, the next is difference between the new and the reference frame, frame from SDSS. Below are two frames of today's observation. Then a logarithm frame. Finaly, old reference frame. Ruduction is continue. This message can be cited.