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[vsnet-id 719] NGC 2210 variables and field stars
- Date: Tue, 17 Dec 2002 16:35:59 -0700 (MST)
- To: dubois@simbad.u-strasbg.fr, gerard@simbad.u-strasbg.fr, inr@stsci.edu, jmn@isr.bc.ca, vsnet-id@kusastro.kyoto-u.ac.jp, woelfel@simbad.u-strasbg.fr
- From: Brian Skiff <Brian.Skiff@lowell.edu>
- Subject: [vsnet-id 719] NGC 2210 variables and field stars
- Delivered-To: vsnet-id@kusastro.kyoto-u.ac.jp
- Sender: owner-vsnet-id@ooruri.kusastro.kyoto-u.ac.jp
Partly as a way of looking into how recent star catalogues fare in the
difficult region of the LMC, the list below shows accurate (but not always
precise) coordinates for about 130 variables and another 100 or so comparison
sequences in the field of NGC 2210. NGC 2210 is one of the few true globulars
in the LMC, and located east of the main body of the galaxy.
The field stars and cluster variables been worked over by Walker
(1985MNRAS.212..343W), by Hazen & Nemec (1992AJ....104..111H, HN92 henceforth),
and finally by Reid & Freedman (1994MNRAS.267..821R, RF94 henceforth). There
are additional papers dealing with the cluster color-magnitude diagram that
are ignored here.
The main problem with the variables is that coordinates for them published
by Hazen & Nemec are completely in error, sometimes only a few tens of arcsec
but in other instances by a degree or so. At mag. 19 in the LMC, this of
course means they are lost. No systematic error was evident to me (incorrect
precession amounts or direction, fixed offsets in RA/Dec): they're just wrong.
The main HN92 data table had to be republished in an erratum, so perhaps there
were other problems, too. Unfortunately these stars are all included in SIMBAD
with the erroneous positions, and hence unrecoverable as they stand. Walker
and RF94 published only charts for their stars, as (luckily) did HN92.
I have used the published charts to determine positions for all the 85
HN92 field variables, 44 cluster variables plus those by RF94, as well as
comparison sequences in and around the cluster by HN92. (These comp stars are
also in SIMBAD with bogus coordinates.) I started with screen plots of
USNO-A2.0 to get at least rough positions, then refined these using GSC-2.2,
USNO-B1.0, 2MASS, etc., in VizieR while comparing DSS images from the Goddard
SkyView service at large scale. Many stars were so faint and/or crowded that
positions were estimated from the DSS images, controlled with positions for
nearby stars that do appear in the catalogues. Ultimately, every star listed
below was examined on a DSS cutout to compare with the published charts.
The tables are laid out as follows. Throughout I have adopted the
acronyms shown by SIMBAD and the Lortet 'Dictionary' and given in the
citations below. These names are shown in the first column. Results for
Tables 2 and 3 of HN92 are given first, which show photoelectric/CCD data
(Table 2) and photographic control sequences (Table 3) over the field. All the
BV data are present in SIMBAD for these stars, so I show only V magnitudes as
a guide. I note here that RF94 found an offset of ~0.08 mag. in these data
(HN92 fainter) among the brighter stars compared to Walker's zero-point.
Combined results for the field variables from HN92's Tables 9 and 10
follow. To the extent available (from Walker, HN92, and RF94) I show mean V
magnitudes and types as determined by these authors. Some external links from
SIMBAD/VizieR are given in the remarks. The notes have to do mainly with
crowding and identification in close pairs. These remarks should be taken as
an indication that the position could be slightly off even if given to full
0".1 precision.
All the reported cluster variables (HN92 Table 11 and cluster chart) are
next. Again I show mean V and types as available from either HN92 or RF94.
Not all of these stars have actually been observed photometrically, so there
are no lightcurves published for them; these unobserved stars are specified in
the notes. Others are found to be constant by RF94, and might be considered
as "suspected variables".
Finally I show additional cluster variables from RF94 Table 3. Their
chart is sufficiently crowded that I could not identify all the intended stars
even if the label was discernable.
Only a few of these stars appear in the GCVS v4.1 extragalactic catalogue,
but I give the names of those that do.
\Brian
-------------------------------------------------------------------------------
Variables and other stars in the field of NGC 2210
version: 17 Dec 2002
position sources (column 's'):
b USNO-B1.0 (2003AJ....M (in press), I/284)
g GSC-2.2 (2001GSC2..C......0S, I/271)
M 2MASS second release (20002MASS.2.......:, B/2mass/out)
s SkyView estimate (+/-2")
T Tycho-2 (2000A&A...357..367H, I/259)
U UCAC1 (2000AJ....120.2131Z, I/268)
source: 1992AJ....104..111H
HAZEN M.L. and NEMEC J.M.
Astron. J., 104, 111-127 (1992)
Variable stars within 25 arcmin of the LMC globular cluster NGC 2210.
+erratum: 1993AJ 105 p. 359-363
Comments: Table 2: stars 'ANN' = CL* NGC 2210 ABW NN,
stars 'A' = CL* NGC 2210 SOA A.
Dictionary: Table 2: <Cl* NGC 2210 NEM NNA> N=22.
Table 3: <Cl* NGC 2210 HNWW NN> (WW for NE, NW, SW, SE, (Nos 1-10)
in each quadrant). Table 4: <Cl* NGC 2210 Gra VNN> (Nos V20-V44)
added. Tables 4,9,10: <Cl* NGC 2210 HN NN> (Nos 1-85).
Table 2
NGC 2210 RA (J2000) Dec s V
NEM 7F 6 10 16.39 -69 08 16.3 M 16.31
NEM 7G 6 10 14.93 -69 08 13.3 M 17.13
NEM 9F 6 10 22.87 -69 17 58.5 U 14.95
NEM 9G 6 10 26.60 -69 17 41.6 M 15.89
NEM 9H 6 10 15.63 -69 16 55.8 M 15.79
NEM 9I 6 10 07.06 -69 15 46.4 M 16.09
NEM 19C 6 12 03.36 -68 58 16.5 U 16.35
NEM 20A 6 13 11.77 -69 00 56.0 b 16.88
NEM 21A 6 11 06.36 -69 04 15.1 U 15.08
NEM 21B 6 11 18.39 -69 05 09.7 U 15.71
NEM 31B 6 10 30.88 -69 02 12.6 M 17.05
NEM 35A 6 11 14.60 -69 12 03.3 M 16.36
NEM 36 6 11 34.11 -69 05 34.6 M 17.29
NEM 37 6 11 40.43 -69 05 51.7 M 17.03
NEM 38 6 11 42.18 -69 06 00.9 M 16.99
NEM 38A 6 11 22.26 -69 06 01.6 M 16.82
NEM 38E 6 11 45.33 -69 06 44.3 M 16.27
NEM 38F 6 11 31.10 -69 06 23.1 M 17.05
NEM 38H 6 11 43.50 -69 08 05.5 M 17.23
NEM 39 6 12 06.76 -69 17 48.3 U 15.20
NEM 39A 6 11 12.36 -69 07 12.6 U 15.31
NEM 40A 6 11 48.94 -69 12 35.8 M 15.47
ABW 21 6 11 10.16 -69 08 15.4 M 17.98
ABW 22 6 11 13.25 -69 07 44.4 M 17.54
ABW 25 6 11 15.81 -69 07 06.0 M 17.45
ABW 26 6 11 16.87 -69 06 50.5 M 17.68
SOA A 6 11 04.21 -69 08 14.3 M 18.37
SOA B 6 11 02.2 -69 08 09 s 20.4
SOA C 6 11 12.92 -69 06 18.6 g 18.59
SOA D 6 11 02.51 -69 07 57.5 b 19.18
SOA E 6 11 10.95 -69 08 23.9 b 18.99
SOA F 6 10 54.98 -69 07 29.3 b 18.95
SOA G 6 10 49.5 -69 07 37 s 20.54
SOA H 6 10 50.7 -69 07 51 s 20.29
SOA I 6 10 49.95 -69 08 04.4 b 19.29
SOA J 6 10 57.72 -69 07 14.0 b 18.47
SOA K 6 10 54.69 -69 06 50.0 b 19.05
SOA L 6 10 59.2 -69 06 23 s 20.13:
SOA M 6 10 55.89 -69 06 11.5 b 19.95:
SOA N 6 10 57.09 -69 06 05.0 b 19.02
SOA O 6 11 03.1 -69 06 16 s 20.60:
SOA P 6 11 02.6 -69 06 10 s 20.57:
SOA Q 6 11 03.39 -69 06 06.0 b 19.64:
SOA R 6 11 04.76 -69 06 06.9 b 20.03
SOA S 6 11 04.5 -69 06 15 s 20.50:
SOA T 6 11 04.83 -69 07 48.7 b 19.31
SOA U 6 10 51.81 -69 07 05.3 M 17.02
SOA V 6 10 57.35 -69 06 43.2 b 18.45
SOA W 6 11 06.13 -69 06 41.3 M 18.27
SOA X 6 11 02.26 -69 06 08.0 b 19.14
SOA Y 6 11 13.29 -69 08 10.5 b 18.56
SOA Z 6 10 59.17 -69 06 44.0 M 18.48
-------------------------------------------------------------------------------
Table 3
photog
NGC 2210 RA (J2000) Dec s V
HNNE 1 6 13 40.0 -69 01 05 s 19.59
HNNE 2 6 13 42.29 -69 01 13.9 M 17.60
HNNE 3 6 13 48.06 -69 02 23.4 b 19.30
HNNE 4 6 13 51.29 -69 03 00.6 M 16.57
HNNE 5 6 13 39.2 -69 03 06 s 19.8
HNNE 6 6 12 12.16 -68 45 47.8 M 17.63
HNNE 7 6 12 22.77 -68 45 11.6 b 17.63
HNNE 8 6 12 25.70 -68 45 36.6 b 19.33
HNNE 9 6 12 21.26 -68 46 18.7 M 17.99
HNNE 10 6 12 17.77 -68 43 16.8 M 16.95 = HN85 (beta Lyr variable)
HNNW 1 6 07 32.87 -68 59 55.4 M 18.17
HNNW 2 6 07 39.07 -69 00 11.9 b 19.02
HNNW 3 6 07 40.55 -69 01 30.3 M 16.41
HNNW 4 6 07 19.28 -68 59 53.7 M 17.97
HNNW 5 6 07 49.76 -68 56 05.5 M 17.07
HNNW 6 6 10 47.33 -68 56 57.5 b 17.16
HNNW 7 6 10 23.74 -68 57 15.3 M 18.63
HNNW 8 6 10 26.0 -68 55 50 s 20.2
HNNW 9 6 10 28.8 -68 57 01 s 20.0
HNNW 10 6 10 19.53 -68 56 37.3 M 17.82
HNSW 1 6 09 43.84 -69 25 27.5 g 18.69
HNSW 2 6 09 44.1 -69 24 56 s 20.1
HNSW 3 6 09 54.41 -69 24 57.7 b 18.73
HNSW 4 6 10 07.77 -69 22 08.8 M 17.27
HNSW 5 6 10 22.75 -69 24 16.4 M 18.88
HNSW 6 6 08 07.4 -69 14 59 s 19.74
HNSW 7 6 08 47.45 -69 13 24.6 M 15.91
HNSW 8 6 08 48.21 -69 13 45.3 b 19.07
HNSW 9 6 08 20.28 -69 09 17.8 M 17.64
HNSW 10 6 08 25.82 -69 10 46.1 b 19.53
HNSE 1 6 13 12.78 -69 26 49.7 b 19.31
HNSE 2 6 13 08.47 -69 26 39.0 b 20.0
HNSE 3 6 13 11.88 -69 26 27.6 b 20.0
HNSE 4 6 13 13.3 -69 26 06 s 20.3
HNSE 5 6 13 21.64 -69 25 46.0 M 16.95
HNSE 6 6 15 17.0 -69 14 54 s 19.97
HNSE 7 6 15 04.0 -69 14 53 s 20.2
HNSE 8 6 15 02.19 -69 14 56.7 b 19.03
HNSE 9 6 15 21.96 -69 14 12.0 M 17.42
HNSE 10 6 15 20.81 -69 12 56.3 b 18.97
-------------------------------------------------------------------------------
Table 9 and 10
NGC 2210 RA (J2000) Dec s <V> type remarks
HN 1 6 15 35.25 -69 10 19.2 b 19.3 RRc
HN 2 6 15 23.18 -69 17 30.1 b 19.4 RRc
HN 3 6 14 24.14 -69 25 21.2 b 19.6 RRab
HN 4 6 14 07.69 -68 45 33.5 b 19.6 RRab
HN 5 6 14 06.27 -69 09 09.8 g 19.2 RRc
HN 6 6 13 39.61 -68 58 43.5 g 19.5 RRab
HN 7 6 12 58.87 -69 05 59.6 b 19.2 RRab
HN 8 6 11 12.78 -68 42 07.9 b close pair
HN 9* 6 11 07.0 -69 26 35 s RRab
HN10 6 09 59.5 -69 09 15 s E crowded
HN11 6 09 28.48 -68 48 08.1 g RRab
HN12 6 09 00.03 -68 57 14.2 b 19.1 RRab
HN13 6 07 45.80 -68 58 20.6 b 19.1 RRab
HN14* 6 07 04.0 -69 15 50 s 19.4 RRc
HN15 6 10 13.03 -69 20 22.9 b 19.1 RRab
HN16 6 12 34.74 -69 33 52.5 b 19.6 RRab
HN17 6 13 28.16 -69 22 19.5 b RRab
HN18 6 13 53.42 -68 55 54.1 b RRab
HN19 6 15 25.44 -69 20 54.2 b 19.5 RRab
HN20 6 14 27.48 -68 54 18.6 M
HN21 6 14 36.93 -69 21 57.8 M
HN22* 6 13 58.87 -68 56 38.5 M
HN23 6 13 44.80 -68 59 29.6 U [KDM2001] 7415
HN24* 6 13 27.13 -69 03 45.9 M
HN25 6 13 21.68 -69 03 43.2 M
HN26* 6 13 34.24 -68 59 22.1 g 19.1 RRc
HN27 6 11 58.28 -68 44 45.7 U dCep LMC V4697 = HV 12253
HN28* 6 10 51.82 -69 00 57.6 U SV Dor = LMC V4687
HN29 6 08 20.23 -69 08 16.6 b 19.3 RRab
HN30 6 08 16.29 -69 00 44.8 b 19.0 RRc
HN31* 6 07 39.1 -68 58 29 s
HN32 6 07 20.33 -69 23 45.1 b 19.4 RRab crowded
HN33* 6 09 06.50 -69 22 47.6 b 19.4 RRab
HN34 6 09 36.76 -69 07 13.2 b 19.1 RRab
HN35* 6 10 37.79 -69 19 54.9 b 19.6 RRc
HN36 6 11 13.50 -68 56 40.8 b 19.3 RRab
HN37 6 12 06.30 -69 34 47.4 b 19.7 RRab
HN38 6 13 02.80 -69 25 55.1 b 19.4 RRab
HN39* 6 13 06.1 -68 42 03 s RRab
HN40 6 16 00.16 -69 12 53.1 b 19.2 RRab
HN41 6 10 24.67 -69 20 32.4 b 19.3 RRab
HN42 6 09 15.69 -68 55 15.0 b 19.3 RRc crowded
HN43 6 09 14.42 -68 47 09.4 g 19.4 RRab
HN44 6 07 35.72 -69 11 30.1 g RRab
HN45* 6 09 03.95 -69 10 54.2 b RRab
HN46 6 09 04.33 -69 08 27.6 b 19.3 RRab
HN47 6 09 02.5 -68 48 47 s RRab
HN48 6 10 00.48 -69 27 44.6 b 19.3 RRc
HN49* 6 11 40.6 -68 41 46 s RRab
HN50 6 11 38.58 -69 14 21.4 b 19.3 RRab crowded
HN51 6 13 27.27 -69 19 56.0 g RRab
HN52 6 13 13.83 -69 28 48.7 b 19.7 RRc
HN53 6 09 44.55 -68 45 46.1 b 19.3 RRab
HN54 6 15 20.08 -69 24 18.9 U [KDM2001] 7457
HN55 6 15 16.90 -69 03 42.2 g 19.2 RRc
HN56* 6 12 23.9 -68 51 16 s 19.1 RRab
HN57 6 13 56.36 -69 01 09.9 b 19.3 RRc
HN58 6 16 15.57 -69 09 04.3 g E
HN59 6 14 20.0 -69 25 00 s 19.5 RRab
HN60 6 14 23.68 -69 09 44.0 g 19.4 RRab
HN61 6 12 50.8 -68 46 14 s 19.5 RRab
HN62 6 12 21.07 -69 19 17.2 b 19.3 RRab
HN63 6 07 32.84 -68 57 16.6 U [KDM2001] 7221
HN64 6 07 42.61 -69 13 56.1 U
HN65 6 09 52.50 -69 20 25.0 b crowded
HN66 6 10 13.04 -69 05 25.4 b
HN67 6 13 25.64 -69 29 08.9 M [KDM2001] 7403
HN68 6 15 11.03 -69 12 32.5 U [KDM2001] 7453
HN69 6 12 23.07 -69 29 41.4 U [KDM2001] 7373 = SP77 70-6
HN70 6 08 12.0 -69 07 42 s 19.6 RRab
HN71 6 09 11.86 -69 25 27.5 g E
HN72 6 08 14.73 -69 17 54.2 b
HN73* 6 11 36.5 -68 48 31 s RRab
HN74 6 13 24.18 -69 21 21.1 b 19.4 RRab
HN75 6 12 41.56 -68 46 47.3 M
HN76 6 10 03.90 -69 33 11.1 M E
HN77 6 09 30.59 -68 58 32.6 M [KDM2001] 7287
HN78 6 13 53.69 -69 06 31.6 g E
HN79 6 15 43.73 -69 06 53.2 g
HN80 6 14 13.53 -69 25 56.8 M
HN81 6 10 13.88 -68 56 36.8 M
HN82 6 07 56.97 -69 23 40.5 M
HN83 6 09 23.54 -69 05 23.4 M
HN84 6 10 28.21 -69 09 59.7 M
HN85 6 12 17.77 -68 43 16.8 M 17.0 EB = HNNE 10
Notes
HN 9 northern star of ~3" pair.
HN14 northwestern star of ~2" pair.
HN22 southeastern star of ~2" pair.
HN24 middle/brightest star in 10" trio.
HN28 HV 11097 = IRAS 06112-6900.
HN31 northwestern star of ~3" pair.
HN33 western star of ~2" pair.
HN35 northeastern star of 3" pair.
HN39 northwesternmost star of 15" quartet.
HN45 western star of 2" pair.
HN49 northeastern star of ~3" pair.
HN56 western star of 10" string of three.
HN73 southern/fainter star of ~3" pair.
-------------------------------------------------------------------------------
Table 11 (and elsewhere)
NGC 2210 RA (J2000) Dec s <V> type remarks
GRA V 1 6 11 13.92 -69 07 07.0 b 19.2 RRab LMC V4688
GRA V 2* 6 11 22.89 -69 06 41.9 g 19.0 RRab LMC V4689
GRA V 3* 6 11 22.4 -69 08 32 s 19.1 RRab
GRA V 4 6 11 21.35 -69 07 38.5 b 19.5 constant (RF94)
GRA V 5 6 11 22.51 -69 07 18.8 g 19.1 EA
GRA V 6 6 11 24.4 -69 06 47 s 19.2 RRc LMC V4690
GRA V 7* 6 11 24.40 -69 07 48.4 g 19.2 RRc? LMC V4691
GRA V 8 6 11 27.01 -69 07 56.6 g 19.1 RRab LMC V4692
GRA V 9 6 11 33.4 -69 06 54 s 18.8 RRab LMC V4693
GRA V10 6 11 33.8 -69 06 42 s 18.9 RRab
GRA V11 6 11 32.8 -69 07 38 s 18.5
GRA V12 6 11 34.5 -69 07 32 s not observed
GRA V13 6 11 35.4 -69 07 52 s 19.0 RRab
GRA V14 6 11 35.3 -69 07 42 s 18.9 constant (RF94)
GRA V15 6 11 36.8 -69 07 42 s 18.9 RRc
GRA V16 6 11 38.9 -69 07 17 s 19.2 RRc LMC V4695
GRA V17 6 11 37.9 -69 07 02 s 19.1 RRab LMC V4694
GRA V18* 6 11 44.44 -69 07 02.5 b 19.1 RRc? LMC V4696
GRA V19 6 11 56.54 -69 07 04.7 b 19.1 RRc
GRA V20 6 11 38.90 -69 09 30.0 b 19.2 RRab
GRA V21 6 11 29.54 -69 09 41.8 b 19.1 RRab
GRA V22 6 11 23.5 -69 07 44 s 19.9 constant (RF94)
GRA V23 6 11 25.0 -69 07 34 s 19.3 RRab?
GRA V24 6 11 32.1 -69 06 49 s 19.1
GRA V25 6 11 30.1 -69 06 52 s 19.2 RRc?
GRA V26* 6 11 37.5 -69 08 18 s not observed
GRA V27 6 12 09.58 -69 12 34.3 g 17.6 constant (RF94)
GRA V28 6 12 18.10 -69 04 49.0 b 19.2 RRab
GRA V29* 6 11 09.3 -69 11 38 s 19.2 RRab
GRA V30 6 11 38.1 -69 07 45 s 19.3 constant (RF94)
GRA V31 6 11 01.28 -69 10 09.2 g 19.3 RRab
GRA V32 6 11 40.98 -69 05 10.1 b 19.6 RRc? crowded
GRA V33* 6 11 26.0 -69 06 36 s 19.1 RRc?
GRA V34* 6 11 28.2 -69 07 04 s
GRA V35 6 12 14.39 -69 02 34.1 g 19.1 RRc
GRA V36 6 12 30.18 -69 04 58.7 b 19.2 RRab
GRA V37* 6 11 30.0 -69 07 38 s
GRA V38 6 12 06.66 -69 08 38.0 b 19.4 RRab
GRA V39* 6 11 30 -69 07 10 s
GRA V40* 6 11 44.31 -69 07 02.2 b 19.3 RRab
GRA V41* 6 11 29.1 -69 06 58 s
GRA V42 6 11 38.7 -69 07 12 s 19.1 constant (RF94)
GRA V43 6 11 40.9 -69 07 17.9 s 19.3 constant (RF94)
GRA V44 6 11 07.10 -69 03 18.0 b 19.0 RRab crowded
Notes
GRA V 2 southeastern star of ~2" pair, companion is RF 1468.
GRA V 3 eastern star of ~2" pair, western star also variable (RF 4749).
GRA V 7 crowded; constant (RF94).
GRA V18 southeastern star of ~2" pair with V40.
GRA V26 southeastern/fainter star of ~2" pair.
GRA V29 southwestern star of 5" trio.
GRA V33 southeastern star of ~2" pair, companion is RF 1520.
GRA V34 position uncertain; not observed.
GRA V37 position uncertain; not observed.
GRA V39 position uncertain; not observed.
GRA V40 northwestern star of ~2" pair with V18.
GRA V41 position uncertain; not observed.
-------------------------------------------------------------------------------
source: 1994MNRAS.267..821R
REID N. and FREEDMAN W.
Mon. Not. R. Astron. Soc., 267, 821-839 (1994)
The RR Lyrae population of the LMC - I. The immediate environment
of NGC 2210.
Dictionary: Tables 3,4: <Cl* NGC 2210 RF NNNN> N=44+8 among
Nos 392-4974.
Table 3
RF RA (J2000) Dec s <V> type remarks
1037 6 10 33.36 -69 11 12.8 b 19.1 RRab
1274 6 11 00.70 -69 07 25.4 b 19.2 RRc?
1322 6 11 02.04 -69 01 17.4 b 19.1 RRc?
1462 6 11 24.22 -69 08 46.7 b 19.2
1468* 6 11 22.6 -69 06 41 s 19.0 RRab
1520* 6 11 25.8 -69 06 35 s 18.9 RRc
1561 6 11 29.3 -69 07 37 s 18.4 RRab?
1634* 19.0 RRab?
2871* 19.0 RRab
2873* 18.6 RRc?
2963* 19.2 RR?
4749* 6 11 22.2 -69 08 32 s 19.1
4974 6 11 39.6 -69 06 42 s 19.0 RRab
Notes
1468 northwestern star of ~2" pair, companion is GRA V 2.
1520 northwestern star of ~2" pair, companion is GRA V33.
1634 star not identifiable on chart.
2871 star not identifiable on chart.
2873 star not identifiable on chart.
2963 star not identifiable on chart.
4749 western star of ~2" pair with GRA V 3.
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