2020PASP..132e4201V


Query : 2020PASP..132e4201V

2020PASP..132e4201V - Publ. Astron. Soc. Pac., 132, part no 5, 4201-54201 (2020/May-0)

HST/FGS trigonometric parallaxes of M-dwarf eclipsing binaries.

VAN BELLE G.T., SCHAEFER G.H., VON BRAUN K., NELAN E.P., HARTMAN Z., BOYAJIAN T.S., LOPEZ-MORALES M. and CIARDI D.R.

Abstract (from CDS):

Hubble Space Telescope (HST) Fine Guidance Sensor (FGS) trigonometric parallax observations were obtained to directly determine distances to five nearby M-dwarf/M-dwarf eclipsing binary systems. These systems are intrinsically interesting as benchmark systems for establishing basic physical parameters for low-mass stars, such as luminosity L, and radius R. HST/FGS distances are also one of the few direct checks on Gaia trigonometric parallaxes, given the comparable sensitivity in both magnitude limit and determination of parallactic angles. A spectral energy distribution (SED) fit of each system's blended flux output was carried out, allowing for estimation of the bolometric flux from the primary and secondary components of each system. From the stellar M, L, and R values, the low-mass star relationships between L and M, and R and M, are compared against idealized expectations for such stars. An examination on the inclusion of these close M-dwarf/M-dwarf pairs in higher-order common proper motion (CPM) pairs is analyzed; each of the 5 systems has indications of being part of a CPM system. Unexpected distances on interesting objects found within the grid of parallactic reference stars are also presented, including a nearby M dwarf and a white dwarf.

Abstract Copyright: © 2020. The Astronomical Society of the Pacific. All rights reserved.

Journal keyword(s):

Simbad objects: 48

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Number of rows : 48
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 BD+32 1580 * 07 34 26.3163757012 +31 51 00.082063881   11.02 9.95 9.684   K0III 8 0
2 2MASS J07343121+3151166 * 07 34 31.21416 +31 51 16.6788           G0V 1 0
3 2MASS J07343123+3152293 * 07 34 31.23336 +31 52 29.3952           G8V 1 0
4 V* YY Gem BY* 07 34 37.4475372002 +31 52 10.181030942 11.60 10.56 9.27 7.69 6.67 M0.5VeFe-2 834 0
5 2MASS J07344184+3151371 * 07 34 41.84016 +31 51 37.1916           G0V 1 0
6 2MASS J07344202+3151585 * 07 34 42.02448 +31 51 58.5324           G2V 1 0
7 2MASS J07344901+3151428 * 07 34 49.01472 +31 51 42.8544           G3V 1 0
8 2MASS J07345205+3152341 * 07 34 52.05984 +31 52 34.1328           K0IIb 1 0
9 2MASS J08255189+2427045 EB* 08 25 51.8915894825 +24 27 04.607012270           ~ 11 0
10 V* CU Cnc SB* 08 31 37.5740891049 +19 23 39.398696822   12.83 11.809 11.592   M5Ve 207 0
11 2MASS J13440207+7923492 * 13 44 02.07576 +79 23 49.2396           G8V 1 0
12 2MASS J13451961+7918020 * 13 45 19.61256 +79 18 02.0160           G0V 1 0
13 FBS 1345+796 EB* 13 45 34.8704916235 +79 23 48.292679335     13.363 13.074   M4/5 40 0
14 2MASS J13454132+7921053 * 13 45 41.32560 +79 21 05.3244           K2V 1 0
15 2MASS J13455511+7923137 PM* 13 45 55.0921767951 +79 23 13.828567354   17.1       M4.5V 2 0
16 2MASS J13462128+7921347 * 13 46 21.28176 +79 21 34.7940           G5V 1 0
17 2MASS J13463723+7918475 * 13 46 37.23072 +79 18 47.5812           G3V 1 0
18 2MASS J13465829+7922042 * 13 46 58.29960 +79 22 04.2924           F6V 1 0
19 TYC 4561-1091-1 * 13 47 30.3383994847 +79 23 37.540858353   11.46 10.77     G5V 4 0
20 Gaia DR2 1278753639675232128 * 15 20 53.1800523925 +33 55 12.415972469           ~ 1 0
21 2MASS J15215074+3400325 * 15 21 50.74152 +34 00 32.5728           K0-K2V 1 0
22 V* GU Boo EB* 15 21 54.8242649848 +33 56 09.067728168     13.11     M0/M1.5 90 0
23 GSC 02566-00631 * 15 21 56.8756306109 +33 58 37.568473149   14.5       G0V 2 0
24 2MASS J15215740+3355288 * 15 21 57.40392 +33 55 28.8984           G2V 1 0
25 2MASS J15215853+3400106 * 15 21 58.53672 +34 00 10.6848           K3V 1 0
26 2MASS J15220114+3401057 * 15 22 01.14672 +34 01 05.7396           K0V 1 0
27 GSC 02566-00935 PM* 15 22 05.5406473654 +34 00 01.809249288   14.49 13.83 13.73   F9V 2 0
28 2MASS J15222058+3352147 * 15 22 20.58984 +33 52 14.7828           K3V 1 0
29 TYC 2566-885-1 PM* 15 22 59.3701002193 +34 07 21.873914371   12.55 12.07     ~ 1 0
30 Gaia DR2 1278514938276783360 * 15 23 42.0226206586 +33 29 01.386309684           ~ 1 0
31 2MASS J16334442+5712460 * 16 33 44.42760 +57 12 46.0476           G5-G6V 1 0
32 2MASS J16334854+5711407 * 16 33 48.54912 +57 11 40.7220           F9V 1 0
33 2MASS J16335558+5714230 * 16 33 55.58088 +57 14 23.0316           G2V 1 0
34 UCAC4 737-055250 * 16 33 57.7767860702 +57 14 22.974182365   14.33 13.40 13.24   G8V 1 0
35 V* CM Dra BY* 16 34 20.3299130309 +57 09 44.365524588   14.50 12.87 10.85 9.26 M4.5V 416 0
36 EGGR 258 WD* 16 34 21.5517343404 +57 10 08.867977330   15.49   14.9   DQ8 111 0
37 2MASS J16342291+5711466 * 16 34 22.91496 +57 11 46.6008           K0V 1 0
38 2MASS J16342460+5708270 * 16 34 24.60984 +57 08 27.0456           KOIII 1 0
39 2MASS J16495622+4633360 RG* 16 49 56.2188515020 +46 33 36.027088335   12.12 10.81     K1IIIab 4 0
40 TYC 3500-900-1 * 16 50 03.8226796915 +46 43 17.028017814   11.80 11.35     F5V 1 0
41 2MASS J16501389+4641267 * 16 50 13.89720 +46 41 26.7828           G0V 1 0
42 NAME TrES-Her0-07621 EB* 16 50 20.7264221733 +46 39 01.368154597     15.51     ~ 22 0
43 Gaia DR2 1407718450873494528 * 16 50 21.4655183216 +46 39 04.363878816           ~ 1 0
44 2MASS J16504413+4637108 HB* 16 50 44.1176913747 +46 37 10.902524361           G2V 2 0
45 2MASS J16504822+4636319 * 16 50 48.22416 +46 36 31.9248           F8III 1 0
46 2MASS J16505089+4636459 * 16 50 50.89512 +46 36 45.9720           K0V 1 0
47 2MASS J16505882+4638490 * 16 50 58.82832 +46 38 49.0452           K3V 1 0
48 V* RR Lyr RR* 19 25 27.9123232234 +42 47 03.690634101   7.36   7.6   A8-F7 892 0

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2021.11.30-20:32:28

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