2024ApJ...963L..33B

Query : 2024ApJ...963L..33B

2024ApJ...963L..33B - Astrophys. J., 963, L33 (2024/March-1)

RR Lyrae Stars Belonging to the Candidate Globular Cluster Patchick 99.

BUTLER E., KUNDER A., PRUDIL Z., COVEY K.R., BALL M., CAMPOS C., GOLLNICK K., OLIVARES CARVAJAL J., HUGHES J., DEVINE K., JOHNSON C.I., VIVAS A.K., RICH R.M., JOYCE M., SIMION I.T., MARCHETTI T., KOCH-HANSEN A.J., CLARKSON W.I. and KUSS R.

Abstract (from CDS):

Patchick 99 is a candidate globular cluster located in the direction of the Galactic bulge, with a proper motion almost identical to the field and extreme field star contamination. A recent analysis suggests it is a low-luminosity globular cluster with a population of RR Lyrae stars. We present new spectra of stars in and around Patchick 99, targeting specifically the three RR Lyrae stars associated with the cluster as well as the other RR Lyrae stars in the field. A sample of 53 giant stars selected from proper motions and a position on the color-magnitude diagram are also observed. The three RR Lyrae stars associated with the cluster have similar radial velocities and distances, and two of the targeted giants also have radial velocities in this velocity regime and [Fe/H] metallicities that are slightly more metal-poor than the field. Therefore, if Patchick 99 is a bona fide globular cluster, it would have a radial velocity of -92 ± 10 km s–1, a distance of 6.7 ± 0.4 kpc (as determined from the RR Lyrae stars), and an orbit that confines it to the inner bulge.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Stellar populations - Stellar astronomy - Galactic archaeology - Milky Way dynamics - Galactic bulge - Galaxy bulges - Star clusters - Galactic center - the Milky Way - the Milky Way physics - Milky Way evolution - RR Lyrae variable stars

Simbad objects: 71

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Number of rows : 71
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ESO 452-11 GlC 16 39 25.50 -28 23 52.0           ~ 89 0
2 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
3 Gaia DR3 4049646701162462208 * 18 15 13.4729755184 -29 51 42.346423358           ~ 1 0
4 OGLE BLG-RRLYR-35312 RR* 18 15 14.3593588248 -29 49 56.932329036     15.473   14.750 ~ 12 0
5 OGLE BLG-RRLYR-35355 RR* 18 15 26.1113124912 -29 56 39.995394900     19.282   18.443 ~ 7 0
6 OGLE BLG-RRLYR-35364 RR* 18 15 29.7995033280 -29 52 07.856816592     18.346   17.481 ~ 9 0
7 Gaia DR3 4049648904529528192 * 18 15 33.9988522815 -29 46 55.145834242           ~ 1 0
8 OGLE BLG-RRLYR-35381 RR* 18 15 34.4881997856 -29 48 18.073864188     16.85 16.35 15.792 ~ 15 0
9 Gaia DR3 4049649484322990080 * 18 15 34.5040177010 -29 45 26.090507922           ~ 1 0
10 Gaia DR3 4049645670364352384 * 18 15 34.5868873187 -29 49 41.859083371           ~ 1 0
11 OGLE BLG-RRLYR-35382 RR* 18 15 34.7235292656 -29 53 38.522349636     15.716   14.910 ~ 18 0
12 Gaia DR3 4049645842163082624 * 18 15 34.7998068558 -29 48 14.135494487           ~ 1 0
13 Gaia DR3 4049648900179843840 * 18 15 34.8259275354 -29 46 12.067499251           ~ 1 0
14 Gaia DR3 4049648797100603392 * 18 15 34.9248225106 -29 47 27.943336676           ~ 1 0
15 Gaia DR3 4049649518692544384 * 18 15 35.0365836724 -29 44 41.183163751           ~ 1 0
16 Gaia DR3 4049645464205898112 * 18 15 36.6551658360 -29 50 17.340076746           ~ 1 0
17 Gaia DR3 4049645773449540864 * 18 15 37.6499321179 -29 49 00.682433123           ~ 1 0
18 Gaia DR3 4049645468601935872 * 18 15 37.7952665845 -29 50 44.143010517           ~ 1 0
19 Gaia DR3 4049645880918208128 * 18 15 38.7550745019 -29 47 50.632112321           ~ 1 0
20 Gaia DR3 4049649419971997952 * 18 15 39.2790251885 -29 44 37.192456386           ~ 1 0
21 Gaia DR3 4049645777838934016 * 18 15 39.4057944839 -29 49 20.083697063           ~ 1 0
22 Gaia DR3 4049646254507713792 * 18 15 40.4238939551 -29 47 18.477997766           ~ 1 0
23 Gaia DR3 4049646254479960832 * 18 15 40.9156050632 -29 47 34.627631980           ~ 1 0
24 Gaia DR3 4049645571680473344 * 18 15 41.8627494627 -29 49 35.177402924           ~ 1 0
25 Gaia DR3 4049645502914071552 * 18 15 42.5005822945 -29 50 26.147495639           ~ 1 0
26 Gaia DR3 4049649243805014016 * 18 15 43.3103999699 -29 45 44.678563064           ~ 1 0
27 Gaia DR3 4049646190109387520 * 18 15 43.6519522627 -29 48 03.017816261           ~ 1 0
28 Gaia DR3 4049645532925394432 * 18 15 44.1338783831 -29 49 39.018357791           ~ 1 0
29 Gaia DR3 4049645983997351680 * 18 15 44.7729470539 -29 48 27.172830767           ~ 1 0
30 Gaia DR3 4049645498565631104 * 18 15 45.1080305119 -29 50 19.385948348           ~ 1 0
31 OGLE BLG-RRLYR-35431 RR* 18 15 45.1351213464 -29 56 52.087377264     15.900   15.147 ~ 17 0
32 Gaia DR3 4049645601644886272 * 18 15 45.7227553639 -29 49 03.573941006           ~ 1 0
33 Gaia DR3 4049645537273864064 * 18 15 45.7959135687 -29 49 29.093994572           ~ 1 0
34 Gaia DR3 4049644747046681344 * 18 15 45.8332280434 -29 50 35.552027693           ~ 1 0
35 Gaia DR3 4049646224472422912 * 18 15 45.8770893781 -29 47 16.398135442           ~ 1 0
36 Gaia DR3 4049645979602017920 * 18 15 45.8870516119 -29 48 47.296370585           ~ 1 0
37 Gaia DR3 4049645983954130432 * 18 15 46.5673692158 -29 48 14.794488876           ~ 1 0
38 Gaia DR3 4049646391918955904 * 18 15 46.6727226598 -29 45 15.453055026           ~ 1 0
39 Gaia DR3 4049645983997319424 * 18 15 46.8073555868 -29 48 53.274855283           ~ 1 0
40 Gaia DR3 4049645983998010624 * 18 15 46.9665656383 -29 48 41.046660869           ~ 1 0
41 DSH J1815.7-2948 Cl* 18 15 47.00 -29 48 46.0           ~ 11 0
42 Gaia DR3 4049645532931378176 * 18 15 47.5286663697 -29 49 51.316282701           ~ 1 0
43 Gaia DR3 4049646426278687616 * 18 15 49.0991961982 -29 45 45.315764743           ~ 1 0
44 Gaia DR3 4049645915277808000 * 18 15 49.2683538569 -29 49 14.155486148           ~ 1 0
45 Gaia DR3 4049646013961775232 * 18 15 49.2757712011 -29 48 09.107550269           ~ 1 0
46 Gaia DR3 4049644781406419584 * 18 15 49.4054175666 -29 49 47.100897060           ~ 1 0
47 Gaia DR3 4049646018357748096 * 18 15 49.5183622067 -29 48 09.363355554           ~ 1 0
48 Gaia DR3 4049646121436982656 * 18 15 50.2604211816 -29 46 52.720226927           ~ 1 0
49 OGLE BLG-RRLYR-16094 RR* 18 15 50.3771977200 -29 43 14.671619040     15.955   15.118 ~ 15 0
50 Gaia DR3 4049644781406390784 * 18 15 50.4521079914 -29 50 21.286160850           ~ 1 0
51 Gaia DR3 4049645154968259968 * 18 15 50.9413972823 -29 50 02.703384473           ~ 1 0
52 Gaia DR3 4049740267106741504 * 18 15 51.1574704279 -29 44 40.593466794           ~ 1 0
53 OGLE BLG-RRLYR-35447 RR* 18 15 51.2042529144 -29 54 25.137143640     15.935   15.379 ~ 8 0
54 Gaia DR3 4049645949638257792 * 18 15 52.9891304767 -29 48 10.764335483           ~ 1 0
55 Gaia DR3 4049740267105938944 * 18 15 53.5574814933 -29 44 32.543639039           ~ 1 0
56 OGLE BLG-RRLYR-35459 RR* 18 15 53.9745165648 -29 50 24.195054588     15.498   14.951 ~ 7 0
57 Gaia DR3 4049645189328034688 * 18 15 54.2561852964 -29 48 45.311072421           ~ 1 0
58 Gaia DR3 4049646048321514752 * 18 15 54.3474086885 -29 48 02.478813602           ~ 1 0
59 Gaia DR3 4049646048321520896 * 18 15 55.3316863791 -29 47 53.064744289           ~ 1 0
60 Gaia DR3 4049646048321532032 * 18 15 55.4186452979 -29 47 24.670238688           ~ 1 0
61 Gaia DR3 4049646151428823808 * 18 15 55.8328665958 -29 46 32.528697297           ~ 1 0
62 Gaia DR3 4049645120614521984 * 18 15 55.8361116672 -29 49 34.682848032           ~ 1 0
63 Gaia DR3 4049646151406824960 * 18 15 56.2744744136 -29 46 21.413932421           ~ 1 0
64 Gaia DR3 4049739992227949440 * 18 15 56.7501320997 -29 45 23.854316225           ~ 1 0
65 Gaia DR3 4049645193723989504 * 18 15 57.0643448800 -29 49 01.256680587           ~ 1 0
66 OGLE BLG-RRLYR-16108 RR* 18 15 57.2460668808 -29 44 55.519620468     15.781 15.62 15.163 ~ 15 0
67 OGLE BLG-RRLYR-35476 RR* 18 16 01.2691177968 -29 55 16.353618888     15.482   14.708 ~ 17 0
68 Gaia DR3 4049739678702776064 * 18 16 19.0255468000 -29 44 29.241449856           ~ 1 0
69 OGLE BLG-RRLYR-35535 RR* 18 16 20.9979816984 -29 52 51.733865388     16.30 15.85 15.292 ~ 20 0
70 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
71 NAME Galactic Bulge reg ~ ~           ~ 4794 0

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