IX/32 ROSAT Bright Survey (Fischer+, 1998-2000)

IX/32/notes.dat Individual notes of rosat.dat file (283 records)

4Bright underlying galaxy, weak OIII5007/4959 in emission, XID uncertain
22Outburst magnitude given
27XID from appearance on DSS
30Optical spectrum resembles that of normal galaxy without emission lines,
30 enhanced flux at wavelengths shortward the Ca-break, much too high X-ray
30 luminosity for a normal galaxy, no X-ray extent and no obvious cluster
30 on DSS2, XID as weak BL Lac or XTG (like RBS1135(=IC3599) or RBS1583)
30 possible, HR1 more suggestive of the former, since the latter typically
30 have soft spectra
62Sy1 in cluster ACO S 0047
64XID uncertain due to relatively large CaII break, X-ray source might be a
64 NELG at RA=00 27 13.7, DE=-27 08 56 with z=0.062.
65One redshift measured of galaxy at specified optical position
75A spectrum of only one galaxy was obtained, XID tentative, no X-ray extent
75 in RASS, XID as BL Lac also possible
88WPVS 07 can also be regarded as X-ray transient galaxy. Grupe discovered
88 the transient nature of the X-ray activity of this Sy-galaxy
96L. Wisotzki (priv. comm.)
97XID as cluster not excluded, although RASS-data show no X-ray extent
114The NED gives an id as normal galaxy referencing to the LCRS (Shectman et
114 al., 1996, Cat. <VII/203), inspection of the spectrum made available by
114 D. Tucker shows weak emission lines suggestive of an AGN nature
123The star visible on the DSS at the given optical position is an unresolved
123 (apparent) binary, the fainter component is a dMe, the likely X-ray
123 source, the brighter a G star
126Only one redshift taken, XID tentatively
138XID from appearance on DSS
145Coordinates and redshift for the (cD;E+3 pec ) galaxy ESO 541- G 013 given
150Redshift due to Wisotzki (priv. comm.), DSS shows nearby, probably
150 interacting companion galaxies
162Wisotzki, priv. comm.
172Mean of two redshifts given
178Redshift measured for galaxy at RA=01 18 11.2, DE=-26 58 12
181Two redshifts measured, $z=0.0508$ for RA=01 20 58.5, DE=-13 51 00, and
181z=0.0488 for the galaxy at RA=01 20 52.0, DE=-13 51 16
216Sy-galaxy in interacting group
230Sy-galaxy in interaction with NELG at RA=01 40 28.8, DE=-66 29 39
238The redshift given is the mean of three, RA/DE/Mag for the galaxy nearest
238 the X-ray position
243Tentative XID based on visual inspection of DSS
256XID with GSC 01757-01936, a K4 star is also possible
295Remillard, priv. comm.
311XID with G 94-B5B (white dwarf) possible from positional coincidence, but
311 hard X-ray spectrum is suggestive of the XID as given
312Mean of two redshifts given
316A Sy galaxy and a cluster of galaxies (Abell S0261) as possible
316 counterparts from NED correlation, no X-ray extent measured
321SIMBAD lists only the F3IV/V star, Fleming identified the WD as companion
321 and XID
325Mean of two redshifts given
378Detection of 40 photons in 67 sec during the RASS, the source was not
378 detected during a PSPC-survey repair pointing and a later HRI- pointing,
378 tentative identification as X-ray transient
380Mean of two redshifts given
387Redshift (col.~13) of galaxy at optical position (cols. 2-3) given,
387 the NED lists a second galaxy with redshift 0.2613 at RA=03 07 01.4,
387 DE=-28 41 21
397Wisotzki, priv. comm.
408redshift changed from 0.703 to 0.0701 (a typo discovered by A. Edge)
419Our XID, based on Maza et al. (1989ApJS...69..349M), differs from that
419 given by Thomas et al. (1998, Cat. <J/A+A/335/467>), who identify
419 ESO 301-G13 (Sy1, z=0.064) at a distance of 67 arcsec as optical
419 counterpart
431Abell 3128, the same counterpart to RBS0432
432Abell 3128b, the same counterpart to RBS0431
436The group is overshone by two rather bright stars, the optical position
436 given is that of a Sy1.9 galaxy
441SIMBAD also gives a classification as [MPP88] 0331-373, a Sy1 galaxy at the
441 same optical position
445Low S/N spectrum which does not allow to determine the subtype and the
445 redshift
447Two redshifts taken near the center of the X-ray emission
453L. Wisotzki (priv. comm.)
456The central dominant galaxy of the cluster is a Sy2 galaxy, X-ray emission
456 is extended, therefore likely XID as cluster, not as AGN
485The NED lists only a single galaxy, not a group or cluster. X-ray extent
485 measured in RASS-data, XID as cluster likely, with the galaxy as likely
485 member
496XID with GJ 157B (Sp M2) also possible)
507NED lists also Abell 3223 at the X-ray position with the same redshift. The
507 Seyfert galaxy probably belongs to the cluster, no significant X-ray
507 extent
526The identification spectrum is blue und featureless, indicative of a BL Lac
526 nature, but rather faint due to the faintness of the source. The galaxy
526 north of the BL Lac candidate has a weak Seyfert nucleus and a
526 contribution to the observed X-ray flux cannot be excluded.
531XID uncertain. The optical image shows a galaxy, whose spectrum has a
531 strong O[II]3727 emission line, weak Balmer H{beta} emission and a flat
531 blue continuum shortward of 3700{AA} (rest wavelength). The X-ray image
531 is slightly extended.
552XID not fully convincing because of large distance between X-ray and
552 optical positions, a star-like object within the X-ray error circle at
552 RA=04 35 14.4, DE=-46 15 33 has not yet been observed but might be the
552 true counterpart
571XID as GJ 174.1B, a M0.5 star (V=12.5mag), also possible
599Optical coordinates wrong in SIMBAD, used are the original coordinates by
599 Thomas et al., 1998, Cat. <J/A+A/335/467>
607Sy1 galaxy in group or cluster, three redshifts taken
632XID as 4U 0513-40, a LMXB possible, but X-ray source extended
656ID based on inspection of DSS
730High proper motion star, the X-ray source therefore lies in a blank field
730 on POSS plates, recent Schmidt plates show the star within the X-ray error
730 circle (D. Engels, priv. comm.)
735Bade, priv. comm.
737Bade, priv. comm.
745Sy-galaxy in cluster, X-ray source extended, XID therefore cluster
780Bade, priv. comm.
797XID changed with respect to Paper I (A. Edge, priv. comm.)
804The identification spectrum has a strong galaxy component, DSS shows more
804 faint galaxies, XID as cluster possible, although no significant X-ray
804 extent was detected in the RASS-data
844The identification spectrum has a strong galaxy component, DSS shows more
844 faint galaxies, XID as cluster possible, although no significant X-ray
844 extent was detected in the RASS-data
867Bade, priv. comm.
871X-ray source is extended, it is most likely a blend of two pointlike
871 sources, the bright star HD,90748 (Sp F8) and the Sy-galaxy; the Sy-galaxy
871 has a companion at RA=10 29 03.4, DE=+27 27 40 with the same redshift
900Bade, priv. comm.
903Bade, priv. comm.
913A contribution to the X-ray flux from the nearby Sy2 galaxy at
913 RA=10 51 51.2, DE=+21 37 59 ($z=0.0529) is possible
915Mean of two redshifts given
969ID based on inspection of DSS
973Alternative XID possible: SZ Crt, Sp K4/K5V(By Dra),
973 RA=11 21 26.6, DE=-20 27 13, m_V_=8.61
989Bade, priv. comm.
1015Mean of three redshifts given
1020The dominant galaxy at RA=11 41 24.1, DE=--12 16 39 observed by us has
1020 a Sy1.8 spectrum
1032Greiner, priv. comm.
1047Bade, priv. comm.
1075Bade, priv. comm.
1112Bade, priv. comm.
1137Bade, priv. comm.
1140Miller, priv. comm.
1214Bade, priv. comm.
1259Miller, priv. comm.
1267Mean of two redshifts given, a third nearby galaxy RA=13 26 17.5,
1267 DE=+12 29 18 does not belong to the cluster (z=0.1478)
1276The identification spectrum is that of a faint normal galaxy at z=0.15.
1276 The X-ray source is not obviously extended (XID not cluster), the extreme
1276 softness of the X-ray spectrum suggests a possible XID as X-ray transient
1276 galaxy (accretion event onto a SMBH)
1300The nearby companion galaxy at RA=13 40 38.1, DE=+40 36 28 has the
1300 same redshift
1302BLL and nearby cluster ABELL 1774 have almost same redshift, no RASS X-ray
1302 extent, XID as BLL likely
1307Bade, priv. comm. New observation: type now Sy1 (instead of Sy), redshift
1307 now 0.171 (instead of 0.176)
1310Bade, priv. comm.
1317Miller, priv. comm.
1319IC 4329A + ABELL 3574, negligible X-ray extent, XID as AGN likely
1321UGC 08738 is an absorption line galaxy (Thorstensen et al., 1995,
1321 Cat. <J/AJ/109/2368>), a possible member of Abell 1800, the X-ray source
1321 does not show an obvious sign of an extent, the X-ray luminosity is too
1321 high to be compatible with a normal absorption line galaxy, an XID as weak
1321 BL Lac could be possible
1322PMN J1350+0940 possibly in cluster, X-ray extended
1324XID (based on NED correlation) is uncertain due to large separation between
1324 optical and X-ray position and the missing X-ray extent
1327Featureless blue discovery spectrum with low S/N; FIRST J135326.1+362049,
1327 a QSO with z=0.284, is offset by 80 arcsec from the X-ray position,
1327 probably too far away
1345Miller, priv. comm.
1353Nearby stars at RA=14 09 18.7, DE=+13 52 59 (Sp F) and
1353 RA=14 09 18.1, DE=+13 52 38 (Sp K) not the XID
1372The Seyfert-galaxy resides in an interacting group
1374Miller, priv. comm.
1376Greiner, priv. comm.
1385Two redshifts were taken of galaxies at RA=14 23 51.6, DE=+40 15 32
1385 (z=0.0829) and RA=14 23 51.4, DE=+40 14 16 (z=0.0817)
1402Bade, priv. comm.
1423An optically bright, extreme blue Sy1 galaxy at RA=14 44 14.7, DE=+06 33 07
1423(V=16.2, z=0.208) might also contribute to the X-ray emission
1428The discovery spectrum is that of a normal absorption line galaxy with weak
1428 H{alpha} emission; no other obvious possible optical counterpart nearby;
1428 the extreme softness of the X-ray spectrum is suggestive of an X-ray
1428 transient galaxy
1429Bade et al. (1998A&AS..127..145B) identify this source as an AGN. This XID
1429 is probably, we took two spectra of absorption line galaxies with almost
1429 same redshift, suggestive of an XID as cluster of galaxies
1433A nearby NELG (RA=14 48 26.7, DE=+35 59 53) with same redshift, interaction
1444Optical position given in NED probably wrong, no object on DSS at given
1444 position
1475Although the optical spectrum is suggestive of a HII galaxy, the occurrence
1475 of an X-ray outburst during the RASS makes the presence of a SMBH likely
1475 (Komossa & Bade, 1999A&A...343..775K)
1500Sy1 in ABELL 2072, X-ray emission point-like, probably mainly from the
1500 Sy-galaxy
1504A contribution from HD 139777, a V=6.6 star (G0IV-V+.) at
1504 RA=15 29 11.1, DE+80 26 54, appears to be likely
1508Strong galaxy contribution to the discovery spectrum, companion galaxy
1508 (RA=15 32 4.1, DE=+30 15 49) at same redshift, XID as cluster unlikely
1508 due to missing X-ray extent but not completely excluded
1509Classified as LINER in Paper I. A. Edge (priv. comm.) confirms its cluster
1509 nature with the optical line emission originating from the cooling flow
1512Possible contribution to the X-ray flux from a nearby dMe star
1512 (RA=15 33 44.1, DE=+69 00 55)
1521Bade, priv. comm.
1526Two extragalactic objects are found among several faint foreground stars,
1526 which are most likely not the counterparts of the X-ray source: the first
1526 is the NELG galaxy at the position and with the redshift as given in the
1526 table, the second is an absorption line galaxy at
1526 RA=15 42 36.6, DE=+58 11 52 with a redshift of z=0.23. This observation
1526 might be suggestive of a galaxy cluster, the X-ray source, however, is not
1526 obviously extended.
1533The NED lists at almost the same position an unspecified AGN (no type,
1533 no redshift)
1540A Sy2 galaxy belonging to the cluster lies at RA=15 56 14.4, DE=+66 20 56;
1540 the X-ray source is clearly extended, XID as cluster
1547AG Dra correctly identified as symbiotic binary
1551XID uncertain due to the faintness of the star
1560The nearby radio source FIRST J160714.6+340229 of unknown nature could also
1560 be the X-ray source
1583The discovery spectrum shows features of a normal absorption line galaxy;
1583 Grupe, Thomas & Leighly (1999A&A...350L..31G) propose an XTG-nature of
1583 this object caused by an accretion event onto a SMBH
1623NED Sy2, SIMBAD Sy1
1636The galaxy at RA=17 18 12.1, DE=+56 39 56 is a Sy1 galaxy. X-ray emission
1636 extended, XID as cluster
1680A spectrum of the object at RA=20 31 51.2, DE=-40 36 53.7, was taken.
1680 It is a faint G or K star without further sign of X-ray activity, not
1680 regarded as XID; slight X-ray extent observed in RASS, cluster candidate,
1680 privately confirmed by H. Bohringer and J. Retzlaff (REFLEX cluster
1680 survey)
1691Two redshifts taken, the first of the galaxy with coordinates as given in
1691 the table (z=0.098), the second at RA=20 41 46.4, DE=-37 36 21 (z=0.109).
1697Spectra were taken of the objects at optical position
1697 (RA, DE) (20 45 12.8, -40 48 54), (20 45 11.2, -40 48 33),
1697 (20 45 16.0, -40 48 53), (20 45 14.5, -40 48 25.9). All objects are rather
1697 faint F or G stars, not the XID. Possible XID with GSC 07967-01203 at
1697 RA=20 45 11.5, DE=-40 49 57, a V=10.7mag star
1705SIMBAD lists a star of spectral type F8, the soft X-ray spectrum suggests
1705 an undetected white dwarf as XID
1719Three redshifts measured
1728Alternative XID as GJ 818.1 or GJ 9719
1737IR-excess, ID correct/unique?
1743Three redshifts measured
1748Two redshifts measured
1756Sy-galaxy interacting with nearby NELG at
1756 RA=21 32 02.8, DE=-33 42 01 (z=0.0293)
1779Possible contribution to the X-ray flux from a nearby Sy-galaxy (z=0.211)
1779 at RA=21 46 27.2, DE=-47 48 25
1818optical position changed to 22 04 17.5, -42 58 14, according to
1818 Beuermann et al., 1999A&A...347...47B.
1831Two redshifts measured
1842A background Sy-galaxy (z=0.2379) lies in a foreground cluster of galaxies
1842 (two redshifts, z=0.136), X-ray emission extended, XID as cluster
1846Grupe (priv. comm.) pointed to the transient nature of the source. Grupe
1846 discovered the transient nature of the X-ray activity of this Sy-galaxy
1861Two redshifts measured of galaxies at (22 25 51.4, -06 35 52) and
1861 (22 25 50.5, -06 36 05)
1864Not a completely convincing XID, the (noisy) spectrum of the faint galaxy
1864 at the given optical position does not show any obvious hallmark of an
1864 X-ray source, the soft X-ray colour makes this source similar to other
1864 XTGs, XID as (weak, hidden) BLL possible; the second object near the X-ray
1864 position at RA=22 28 00.3, DE=-41 57 07 is a faint K star, definitely not
1864 the X-ray source
1888SIMBAD cites the XID given in our Paper I incorrectly
1929XID rests on one measured redshift of a galaxy at the given optical
1929 position, the X-ray extent measured, and the galaxy pair listed in the NED
1929 at (23 00 59.9, +06 45 02) at z=0.0402.
1947Spectra of objects at (23 07 26.3, -17 56 24), a faint K star, and at
1947 (23 07 20.2, -17 56 28) an F star (=GSC 06398-00470, V=11.0) were taken.
1947 These are not regarded as XID, due to their faintness or their large
1947 distance from the X-ray position
1972No cluster is catalogued, no observation by us. RASS X-ray extent and
1972 inspection of DSS showing several galaxies around suggest the XID
1985Two redshifts taken of galaxies at (23 19 40.6, -73 13 36) and
1985 (23 19 37.9, -73 14 44)
1991Possible/likely contribution from the nearby cluster ABELL 3995,
1991 RA=23 21 35.3, DE=-69 41 33, z=0.1864, V=17.3/10, RASS source not extended
2018Possible contribution to RASS X-ray flux from CCDM J23319+1956C and D
2023The NED cites wrong coordinates for CTS,69 when compared with the original
2023 reference; CTS,69 is somewhat off the X-ray position, the celestial body
2023 right at the nominal position of the X-ray source is an absorption line
2023 galaxy with z=0.0963, not the XID
2035Wrong classification in NED (normal galaxy)
2042Three redshifts taken
2057The cluster is centred 2 arcmin away from the X-ray position, the X-ray
2057 source is not obviously extended, regard the Sy as XID
2061Interacting group of galaxies