J/ApJ/832/L18 Gaia's DR1 parallaxes vs previous measurements (Jao+, 2016)
Distance-dependent offsets between parallaxes for nearby stars and Gaia DR1
parallaxes.
Jao W.-C., Henry T.J., Riedel A.R., Winters J.G., Slatten K.J., Gies D.R.
<Astrophys. J., 832, L18-L18 (2016)>
=2016ApJ...832L..18J 2016ApJ...832L..18J (SIMBAD/NED BibCode)
ADC_Keywords: Parallaxes, trigonometric ; Stars, nearby ; Proper motions ;
Photometry
Keywords: astrometry; solar neighborhood; stars: distances
Abstract:
We use 612 single stars with previously published trigonometric
parallaxes placing them within 25pc to evaluate parallaxes released in
Gaia's first data release (DR1). We find that the Gaia parallaxes are,
on average, 0.24±0.02mas smaller than the weighted mean
trigonometric parallax values for these stars in the solar
neighborhood. We also find that the offset changes with distance out
to 100pc, in the sense that the closer the star, the larger the
offset. We find no systematic trends in the parallax offsets with
stellar V magnitude, V-K color, or proper motion. We do find that the
offset is roughly twice as large for stars south of the ecliptic
compared to those that are north.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 139 612 Stars within 25pc with parallaxes from GAIA-DR1
and other sources
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See also:
I/98 : NLTT Catalogue (Luyten, 1979)
I/238 : Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
I/324 : The Initial Gaia Source List (IGSL) (Smart+, 2013)
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
J/AJ/105/1571 : USNO Photographic Parallaxes IX (Harrington+ 1993)
J/AJ/105/1962 : K and M stars photometry (Weis, 1993)
J/A+AS/144/45 : Hipparcos astrometry for 257 stars (Fabricius+, 2000)
J/AJ/130/1680 : LSPM-North proper-motion catalog nearby stars (Lepine+, 2005)
J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)
J/MNRAS/403/1949 : UBV(RcIc)JHK photometry of HIP nearby stars (Koen+, 2010)
J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)
J/ApJ/730/119 : HST/WFC3 obs. of Cepheids in SN Ia hosts (Riess+, 2011)
J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)
J/A+A/546/A61 : Radial velocities for XHIP catalogue (de Bruijne+, 2012)
J/ApJ/784/156 : Parallaxes for 1507 nearby M dwarfs (Dittmann+, 2014)
J/AJ/149/5 : Solar neighborhood. XXXV. Dist. to M dwarfs (Winters+, 2015)
J/A+A/596/A116 : Radial velocities of K-M dwarfs (Sperauskas+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 h RAh Hour of Right Ascension (J2000)
4- 5 I2 min RAm Minute of Right Ascension (J2000)
7- 11 F5.2 s RAs Second of Right Ascension (J2000)
13 A1 --- DE- Sign of the Declination
15- 16 I2 deg DEd Degree of Declination (J2000)
18- 19 I2 arcmin DEm Arcminute of Declination (J2000)
21- 24 F4.1 arcsec DEs Arcsecond of Declination (J2000)
26- 35 A10 --- Name Object Name
37- 42 I6 --- HIP ? Hipparcos identifier
44- 62 I19 --- Gaia GAIA-DR1 Source identifier
64- 68 F5.3 mas/yr mu [0.002/3.5] Proper motion
70- 74 F5.1 deg PA Position angle
76- 77 I2 --- r_mu Reference code for mu (1)
79- 83 F5.2 mag Vmag [4.6/13]? The Johnson V magnitude
85- 86 I2 --- r_Vmag ? Reference code for Vmag (1)
88- 92 F5.2 mag Kmag [2.9/13]?=99.99 The 2MASS Ks magnitude
94- 98 F5.2 mag Gmag [4.7/12.5] The GAIA G magnitude
100-106 F7.3 mas plx-w [40/299] Weighted mean parallax
108-112 F5.3 mas e_plx-w [0.1/9.4] Error in plx-w
114 I1 --- Np [1/3] Number of parallaxes
116-123 A8 --- r_plx-w Reference code for plx-w (1)
125-131 F7.3 mas plx-G [26/296] The GAIA-DR1 parallax
133-139 F7.5 mas e_plx-G [0.2/1] Error in plx-G
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Note (1): Reference as follows:
1 = this work;
2 = Bessell (1990PASP..102.1181B 1990PASP..102.1181B);
3 = Dahn et al. (1988AJ.....95..237D 1988AJ.....95..237D);
4 = Dittmann et al. (2014, J/ApJ/784/156);
5 = Fabricius & Makarov (2000, J/A+AS/144/45);
6 = Harrington & Dahn (1980AJ.....85..454H 1980AJ.....85..454H);
7 = Harrington et al. (1993, J/AJ/105/1571);
8 = Hog et al. (2000A&A...355..L27H);
9 = Ianna et al. (1996AJ....111..492I 1996AJ....111..492I);
10 = Jao et al. (2005AJ....129.1954J 2005AJ....129.1954J);
11 = Khovritchev et al. (2013MNRAS.435.1083K 2013MNRAS.435.1083K);
12 = Kilkenny et al. (2007MNRAS.380.1261K 2007MNRAS.380.1261K);
13 = Koen et al. (2010, J/MNRAS/403/1949);
14 = Riedel et al. (2010AJ....140..897R 2010AJ....140..897R);
15 = Shkolnik et al. (2012, J/ApJ/758/56);
16 = Subasavage et al. (2009AJ....137.4547S 2009AJ....137.4547S);
17 = Weis (1987AJ.....93..451W 1987AJ.....93..451W);
18 = Weis (1988AJ.....96.1710W 1988AJ.....96.1710W);
19 = Weis (1993, J/AJ/105/1962);
20 = Weis (1996AJ....112.2300W 1996AJ....112.2300W);
21 = Weis et al. (1999AJ....117.1037W 1999AJ....117.1037W);
22 = Winters et al. (2015, J/AJ/149/5);
23 = van Altena et al. (1995, I/238);
24 = Weis (1991AJ....101.1882W 1991AJ....101.1882W);
25 = Weis (1991AJ....102.1795W 1991AJ....102.1795W);
26 = Leeuwen (2007A&A...474..653V 2007A&A...474..653V).
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 01-Mar-2017