2024PASP..136e4201R

Query : 2024PASP..136e4201R

2024PASP..136e4201R - Publ. Astron. Soc. Pac., 136, part no 5, 4201 (2024/May-0)

From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources.

RODRIGUEZ A.C.

Abstract (from CDS):

Galactic X-ray sources are diverse, ranging from active M dwarfs to compact object binaries, and everything in between. The X-ray landscape of today is rich, with point source catalogs such as those from XMM-Newton, Chandra, and Swift, each with ≳105 sources and growing. Furthermore, X-ray astronomy is on the verge of being transformed through data releases from the all-sky SRG/eROSITA survey. Many X-ray sources can be associated with an optical counterpart, which in the era of Gaia, can be determined to be Galactic or extragalactic through parallax and proper motion information. Here, I present a simple diagram-the “X-ray Main Sequence,” which distinguishes between compact objects and active stars based on their optical color and X-ray-to-optical flux ratio (FX/Fopt). As a proof of concept, I present optical spectroscopy of six exotic accreting WDs discovered using the X-ray Main Sequence as applied to the XMM-Newton catalog. Looking ahead to surveys of the near future, I additionally present SDSS-V optical spectroscopy of new systems discovered using the X-ray Main Sequence as applied to the SRG/eROSITA eFEDS catalog.

Abstract Copyright: © 2024. The Author(s). Published by IOP Publishing Ltd on behalf of the Astronomical Society of the Pacific (ASP). All rights reserved

Journal keyword(s): X-ray astronomy - Binary stars - Cataclysmic variable stars - RS Canum Venaticorum variable stars - Variable stars - Astronomy data visualization - X-ray stars

VizieR on-line data: <Available at CDS (J/PASP/136/e4201): table3>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 54

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Number of rows : 54
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 CD-26 16866B * 00 00 09.8310028968 -25 19 20.935437096   9.913 9.442 10.125   ~ 6 0
2 HD 224806 PM* 00 00 47.8418479128 +23 32 17.589692148   8.28 7.83     F5 25 0
3 Cl* Blanco 1 ZS 37 Ro* 00 01 53.4283161552 -30 06 12.837511152   16.58 15.67     ~ 31 0
4 Cl* Blanco 1 ZS 38 Er* 00 01 54.4512166536 -30 07 41.818077048   14.63 13.77     ~ 20 0
5 2MASS J00015455-3010384 * 00 01 54.5533910832 -30 10 38.493601356     18.92     ~ 24 0
6 Cl* Blanco 1 ZS 40 Ro* 00 01 56.9246466432 -30 12 07.973331660   16.28 15.39     ~ 30 0
7 HD 224948 * 00 01 57.7519690656 -30 09 28.673906148   10.29 9.96     A9/F0V 50 0
8 V* QR And CV* 00 19 49.9252996176 +21 56 52.169584416   12.38 12.73 11.86   Ss 139 0
9 1FGL J0212.3+5319 EB* 02 12 10.4774318712 +53 21 38.778250464   15.213 14.677 14.286   ~ 58 0
10 V* V518 Per HXB 04 21 42.7227473352 +32 54 26.939156184           M4.5V 670 0
11 V* UV Aur C* 05 21 48.9129714624 +32 30 40.177664388   12.46 10.41 9.15   C8,1Je 223 0
12 HD 245770 HXB 05 38 54.5748918624 +26 18 56.836952784 9.30 9.84 9.39 8.77 8.30 O9/B0III/Ve 1045 0
13 1A 0620-00 HXB 06 22 44.5423857312 -00 20 44.290460544           K3V-K7V 1144 0
14 CD-28 3719 Sy* 07 01 09.1555114272 -29 06 25.046471988   12.10 10.59     S6,8e 31 0
15 V* ZZ CMi LP* 07 24 13.9974457224 +08 53 51.786973752   11.10 10.20     M6I-IIep 59 0
16 V* NQ Gem Sy* 07 31 54.5211878712 +24 30 12.562655904   10.13 7.95     C6,2_CH3 110 0
17 RX J0925.7-4758 XB* 09 25 46.0017018216 -47 58 17.340963384   19.2       ~ 91 0
18 PSR J1048+2339 Psr 10 48 43.4339582160 +23 39 53.577436140     19.47     ~ 82 0
19 V* KV UMa HXB 11 18 10.7930420496 +48 02 12.314730120           K5V-M1V 865 0
20 V* AM CVn CV* 12 34 54.6231062664 +37 37 44.120620056   14.02 14.13 14.47   DBnnp 434 0
21 PSR J1306-4035 Psr 13 06 56.2808156568 -40 35 23.465480784   18.73   17.99 17.22 ~ 25 0
22 PSR J1311-3430 Psr 13 11 45.7292612136 -34 30 30.294149760   21.0   18.8   ~ 181 1
23 PSR J1431-4715 Psr 14 31 44.6313693632 -47 15 27.399549133           ~ 49 0
24 V* V822 Cen LXB 14 58 21.9347842080 -31 40 07.515432768 11.95 12.85 12.8     K3-K7V 555 0
25 V* AG Dra Sy* 16 01 41.0120557968 +66 48 10.135056672 11.50 11.06 9.74 8.52   K3IIIep 520 0
26 PSR J1622-0315 Psr 16 22 59.6408643864 -03 15 37.303251262           ~ 48 0
27 PSR J1653-0158 Psr 16 53 38.0717183664 -01 58 36.843092004   20.4   19.4   ~ 102 0
28 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
29 V* V934 Her LXB 17 06 34.5128222328 +23 58 18.639373836 11.20 9.16 7.62     M3III(e) 165 0
30 PSR J1723-2837 Psr 17 23 23.1937506912 -28 37 57.210408048   16.81 15.77 15.71   ~ 105 0
31 V* V2116 Oph Sy* 17 32 02.1532435416 -24 44 44.129169096   20.78 18.4     M6IIIe 719 1
32 CXOGBS J173620.2-293338 LP? 17 36 20.1956298264 -29 33 39.102056136         15.156 ~ 13 0
33 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
34 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
35 PSR J1810+17 Psr 18 10 37.2791131488 +17 44 37.425884136           ~ 147 1
36 PSR J1816+4510 Psr 18 16 35.9342957160 +45 10 33.917516328           ~ 126 0
37 V* V4641 Sgr HXB 18 19 21.6343259256 -25 24 25.849595952     13.654 13.479 13.139 B9III 530 0
38 PSR J1910-5320 Psr 19 10 49.1174687189 -53 20 57.011842839           ~ 22 0
39 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1186 1
40 KS 1947+300 HXB 19 49 35.4841147968 +30 12 31.775979852   15.16 14.22 13.53 12.88 B0Ve 194 0
41 DO 18341 HXB 19 55 42.3383143920 +32 05 49.046285472   12.02 9.97     M4/5III 145 0
42 PSR J1957+2516 Psr 19 57 34.6156739821 +25 16 02.246983345           ~ 23 0
43 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
44 PSR J1959+2048 Psr 19 59 36.7643141520 +20 48 14.896407996   21.08 20.16 19.53 18.79 G: 854 3
45 V* RR Tel Sy* 20 04 18.5404499712 -55 43 33.153979080 9.93 11.33 10.81 11.689   M5e 550 0
46 V* WZ Sge CV* 20 07 36.5037622512 +17 42 14.733254952   15.30 15.20 10.817   D 982 0
47 V* V404 Cyg HXB 20 24 03.8247037434 +33 52 01.961154861           G9/K0III/V 1370 0
48 PSR J2039-5617 Psr 20 39 34.9609502672 -56 17 09.033104197           ~ 84 0
49 V* ER Del Sy* 20 42 46.4988142800 +08 41 13.540747956   12.17 10.39     S5.5 46 0
50 PSR J2129-04 Psr 21 29 45.0469239408 -04 29 06.973600236     16.68     ~ 100 0
51 V* V1727 Cyg LXB 21 31 26.2133156448 +47 17 24.512055396 16.75 17.05 16.4     ~ 250 0
52 PSR J2215+51 Psr 22 15 32.6869149432 +51 35 36.400854912           ~ 176 0
53 PSR J2339-0533 Psr 23 39 38.7412778376 -05 33 05.108592528     18.48     ~ 149 0
54 NAME Galactic Ridge ? ~ ~           ~ 543 1

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