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## (from tabmap V6.0 (2016-08-18)) 2024-04-26T20:13:12 #--------------------------------------------------------------------------- #-- II/218 Sternberg Supernova Catalogue (Tsvetkov+ 1998) #-------------------------------------------------------------------------- #---Table: II/218/./notes.dat Notes to individual supernovae. (188 records) # SN A6 --- SN designation # Text A72 --- Text of note ------------------------------------------------------------------------------- SN |Text ------|------------------------------------------------------------------------ 1938B |The supernova is located in double system of galaxies. NGC 2673 was 1938B |adopted to be the parent galaxy. 1956B |The supernova is located in double system of galaxies. NGC 4783 was 1956B |adopted to be the parent galaxy. 1956C |Supernova candidate appeared to be a minor planet. 1964O |Intergalactic supernova. 1966O |Intergalactic supernova. 1980I |Intergalactic supernova. 1983ab|Discovered by S.Antipin in 1996 on Moscow plate collection taken with 1983ab|the Crimean 0.40-m astrograph. 1984H |Identification of parent galaxy is uncertain. 1985F |Maximum light occurred in 1984 and was determined by prediscovery 1985F |plates. 1985T |The parent galaxy of this SN is named "ANONYMOUS" in IAU Circ. 6436, 1985T |1996 but it is apparently "ESO 192-7". 1987F |and 1988I (1989AJ.....97..726F) and IAU Circular 6589, 1997. 1987F |These supernovae were discovered in the program of Supernova Cosmology 1987F |Project, where N. Walton and P. Ruiz-Lapuente were new participants. 1988I |and 1987F (1989AJ.....97..726F) and IAU Circular 6589, 1997. 1988I |These supernovae were discovered in the program of Supernova Cosmology 1988I |Project, where N. Walton and P. Ruiz-Lapuente were new participants. 1989X |offsets from the nucleus "5.8sw" (Richmond and IAUC) versus "2.5E 2.5S" 1989X |(ours) 1990C |is it really a supernova? 1990ai|Intergalactic supernova. 1991az|it looks like the galaxy is "MCG 04-06-29" but it was designated "ANON" 1991az|in IAU Circ. N 5356, 1991. 1992ad|We accepted offsets for the supernova according to R.H.McNaught 1992ad|(34".6 east, 26".2 south) instead of the offsets measured by R.Evans 1992ad|(40" east and 40" south). 1992ay|The supernova is located in double system of galaxies. 1992ba|the offsets from Evans are "60W 0S". We calculated from the galaxy and 1992ba|supernova equatorial coordinates the offsets "27W 3N". But the problem 1992ba|remains. 1993ae|Are "U 1071" and "I 126" the same galaxies? 1994ab|There are two designations for the galaxy MCG-05-50-008 or E 464-G30 1994ak|its offsets were changed from "58w 33s" to "43W 27S" 1995N |The parent galaxy of this SN is the brighter in a pair. 1996ae|The profile of H-alpha is reminiscent of that shown by the peculiar 1996ae|type-II (IIn) supernova 1988Z (see Turatto et al. 1993, MNRAS 262, 128) 1996ai|There is a broad absorption trough at 614 nm, the defining feature of 1996ai|type-Ia supernovae, but this might instead be redshifted H-alpha 1996ai|absorption in a type-II object. (see IAU Circ. 6423, 1996). 1996bo|Discovered independantly by both Chinese and Japanese astronomers 1996bp|There is also image obtained one day before the discovery. 1996bp|The galaxy was noted as elliptical in IAU Circulair, but it classified 1996bp|as lenticular in PGC. 1996bw|There are many reported positions for the supernova in IAU Circulars 1996bw|from different observers ( No 6516, 6557 ) M. Cavagna and F. Manca, 1996bw|Sormano: R.A. = 1h43m44s.58, Decl. = +4d13'19".7 ; G. J. Garradd, 1996bw|Loomberah, N.S.W.: 44.68, 20.0 ( and figures ) D. di Cicco, Sudbury, MA: 1996bw|44.48, 19.8 ( '' ) C. Hergenrother: 44.51, 19.0 ( '' ) We adopted values 1996bw|44.51, 19.7 ( '' ) 1996cb|According to IAU Circular N 6528 it is type-IIb supernova but we did not 1996cb|adopt this designation as well. 1996cf|This SN was discovered by Supernova Cosmology Project and A. Fisher (see 1996cf|IAU Circular 6621, 1997). 1997D |The velocities pointed out in RC3 and in IAU Circular N 6537 are quite 1997D |different from each other ( 1565 km/s vs 1296 km/s ) 1997W |The position of this SN is 0".7 west and 2".4 south of SN 1996bw ( it 1997W |was pointed out in IAU Circular 6551, 1997 ). So the position of SN 1997W |1997W assumed to be 20".4 west and 5".7 south of the center of the host 1997W |galaxy. 1997aa|Spectrum shows weak, yet conspicuous, H Balmer lines. 1997ab|Spectroscopic properties indicate of this SN resemble those of Type 1 1997ab|Seyfert nuclei and QSOs. See the paper of Alexei V. Filippenko "The 1997ab|'Seyfert 1" Optical Spectra of the Type II Supernovae 1997ac|1997ac... ...1997ar These supernovae were discovered in the program 1997ac|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ac|were new participants. 1997ad|1997ac... ...1997ar These supernovae were discovered in the program 1997ad|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ad|were new participants. 1997ae|1997ac... ...1997ar These supernovae were discovered in the program 1997ae|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ae|were new participants. 1997af|1997ac... ...1997ar These supernovae were discovered in the program 1997af|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997af|were new participants. 1997ag|1997ac... ...1997ar These supernovae were discovered in the program 1997ag|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ag|were new participants. 1997ah|1997ac... ...1997ar These supernovae were discovered in the program 1997ah|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ah|were new participants. 1997ai|1997ac... ...1997ar These supernovae were discovered in the program 1997ai|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ai|were new participants. 1997aj|1997ac... ...1997ar These supernovae were discovered in the program 1997aj|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997aj|were new participants. 1997ak|1997ac... ...1997ar These supernovae were discovered in the program 1997ak|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ak|were new participants. 1997al|1997ac... ...1997ar These supernovae were discovered in the program 1997al|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997al|were new participants. 1997am|1997ac... ...1997ar These supernovae were discovered in the program 1997am|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997am|were new participants. 1997an|1997ac... ...1997ar These supernovae were discovered in the program 1997an|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997an|were new participants. 1997ao|1997ac... ...1997ar These supernovae were discovered in the program 1997ao|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ao|were new participants. 1997ap|1997ac... ...1997ar These supernovae were discovered in the program 1997ap|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ap|were new participants. 1997aq|1997ac... ...1997ar These supernovae were discovered in the program 1997aq|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997aq|were new participants. 1997ar|1997ac... ...1997ar These supernovae were discovered in the program 1997ar|of Supernova Cosmology Project, where N. Walton and P. Ruiz-Lapuente 1997ar|were new participants. 1997br|Bright Type Ia supernova. Photometric evolution is similar to that of SN 1997br|1991T. 1997bs|As the types IIn and IIb are still not included to the main list. 1997bw|There is no detectable host galaxy for this supernovae ( as it was 1997bw|pointed out in IAU Circular 6633, 1997 ). 1997by|The parent galaxy for this SN locates in the cluster Abell 1736. 1997bz|The spectra are heavily contaminated by the host galaxy, but they 1997bz|indicate that this SN is of type Ia. 1997ck|This supernova was discovered at z=0.97. 1997cn|M.Turatto et al. pointed out in IAU Circular N 6667, 1997, that its 1997cn|spectrum closely resembles that of SN 1991bg one day after maximum ( 1997cn|Turatto et al. 1991, MNRAS 283, 1). SN 1997cn could be important in 1997cn|light of D.Branch's and S. van den Bergh's paper ( D.Branch & S. van den 1997cn|Bergh, 1993, AJ, 105, 2231 ) named "Spectroscopic differences between 1997cn|Type Ia supernovae in early-type and those ones in late-type galaxies". 1997cn|One can call this supernova as a "twin" to SN 1991bg in a certain sense. 1997cn|But let us see what will happen with SN 1997cn in the future. 1997cn|We adopted "Ia" designation for the type of the SN as in case of 1997cn|SN 1991bg. 1997cq|The galaxy from which the offset is pointed out is not necessary the 1997cq|host one. So we leave blank corresponding place in the Catalogue. This 1997cq|supernova discovered on McDonald Observatory raises the question about 1997cq|location of the parent galaxy for a supernova and reality of connection 1997cq|between the latter and the former. In our Catalogue we try to exclude 1997cq|controversial cases when the parent galaxy is not located clearly 1997cq|adopting designation "ANON" for the galaxy. Our Catalogue demonstrates 1997cq|that the number of supernovae for which parent galaxy was not located 1997cq|clearly is increasing, so one can make special researches for such 1997cq|cases, especially for supernovae in clusters of galaxies. 1997cq|Another Type IIn supernova. The type designation "IIPec" was adopted in 1997cq|main Catalogue list for this supernova. 1997cr|The Type II identification for this SN is still under question. (IAU 1997cr|Circular, 6682, 1997) and parent galaxy may not belong to the cluster. 1997cr|So c*z pointed out in the main Catalogue list may be somewhat uncertain. 1997cs|Another Type IIn supernova. Again the type designation "IIPec" was 1997cs|adopted in main Catalogue list for this supernova as in case of 1997cs|SN 1997cq. 1997cw|SN 1991T-like peculiar type Ia SN, near or soon after optical maximum. 1997cw|This supernova is seriously reddened by NGC 105. We adopted "IaPec?" 1997cw|designation for the type of the SN as in case of SN 1991T. 1997cx|Rather bright Type II SN discovered by M.Schwartz. 1997db|The second supernova discovered in the UGC 11861. Note that the first 1997db|one, SN 1995ag, was also of Type II. 1997dd|As N.Suntzeff and M.Phillips report in IAU Circ. N 6725, the spectrum 1997dd|appears to be intermediate between types II-P and Ib. We confirm their 1997dd|classification "IIPec" for this supernova, as there was hydrogen in 1997dd|spectrum obtained near light maximum. 1997ef|This SN has unusual spectra. A.V.Filippenko et al. (IAUC 6783, 6786, 1997ef|6798) found out that it could be an extreme, previously unobserved case 1997ef|of peculiar type Ib or Ic supernova. 1997eg|A.V.Filippenko and A.J.Barth noted (IAUC 6794) that this SN closely 1997eg|resembles SN 1988Z. The latter is known to be a special object among 1997eg|type IIn SNe. 1997ei|K. Ayani and H. Yamaoka reported (IAUC 6800) that this SN could have 1997ei|been peculiar, probably fast-declining and sub-luminous type Ia event. 1997ei|But no photometry is still available for this SN, and we adopted type 1997ei|Ia classification. 1997ff|One of two first SNe discovered with help of HST 1997fg|One of two first SNe discovered with help of HST 1998A |SN light curve has secondary maximum like in the case of SN 1987A. 1998E |Another Type IIn supernova. Again the type designation "IIPec" was 1998E |adopted in main Catalogue list for this supernova as in case of all 1998E |other Type IIn SNe. (See IAU Circ. N 6817) 1998S |Type IIn SN. 1998T |There was an error in the name of the parent galaxy for this SN. H. 1998T |Yamaoka, T. Kato, A.V. Filippenko, and S. D. Van Dyk corrected precise 1998T |position of this SN. 1998ab|Unusual Type Ia SN with spectrum resembling that of SN 1991T. 1998ae|Z=1.1 for this supernova. We remind that C*Z rather than true 1998ae|relativistic V is presented in the Catalogue for distant SNe. 1998bw|GRB occured near the position of SN. There were suggestions that these 1998bw|events are associated. 1998ct|Type-IIn SN. -------------------------------------------------------------------------------