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J/A+A/597/A47   CARMENES input catalogue of M dwarfs II (Cortes-Contreras+ 2017)

CARMENES input catalogue of M dwarfs. II. High-resolution imaging with FastCam. Cortes-Contreras M., Bejar V.J.S., Caballero J.A., Gauza B., Montes D., Alonso-Floriano F.J., Jeffers S.V., Morales J.C., Reiners A., Ribas I., Schoefer P., Quirrenbach A., Amado P.J., Mundt R., Seifert W. <Astron. Astrophys. 597, A47 (2017)> =2017A&A...597A..47C (SIMBAD/NED BibCode)
ADC_Keywords: Stars, standard ; Stars, dwarfs ; Stars, M-type ; Stars, late-type ; Stars, double and multiple Keywords: binaries: close - stars: late-type - stars: low mass Abstract: We search for low-mass companions of M dwarfs and characterize their multiplicity fraction with the purpose of helping in the selection of the most appropriate targets for the CARMENES exoplanet survey. We obtained high-resolution images in the I band with the lucky imaging instrument FastCam at the 1.5m Telescopio Carlos Sanchez for 490 mid- to late-M dwarfs. For all the detected binaries, we measured angular separations, position angles, and magnitude differences in the I band. We also calculated the masses of each individual component and estimated orbital periods, using the available magnitude and colour relations for M dwarfs and our own MJ-spectral type and mass-MI relations. To avoid biases in our sample selection, we built a volume-limited sample of M0.0-M5.0 dwarfs that is complete up to 86% within 14pc. Description: From the 490 observed stars, we detected 80 companions in 76 systems, of which 30 are new discoveries. Another six companion candidates require additional astrometry to confirm physical binding. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 267 490 Log of observed stars: list of 490 observed M-dwarf targets tablea2.dat 94 68 ADS standard stars tablea3.dat 33 69 List of observed stars with confirmed visual (unbound) companions tablea4.dat 99 192 Astrometric properties of the physically and likely bound binaries in the sample tablea5.dat 95 97 Derived parameters for confirmed physical pairs tablea6.dat 99 81 Known binaries at angular separations larger than 5 arcsec
See also: J/A+A/577/A128 : CARMENES input catalogue of M dwarfs I (Alonso-Floriano+ 2015) Byte-by-byte Description of file: tablea1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- Seq Identification number 5- 15 A11 --- Karmn Our Carmencita identifier, JHHMMm+DDdA (1) 18- 38 A21 --- Name Common name 40- 41 I2 h RAh Right ascension (J2000) (2) 43- 44 I2 min RAm Right ascension (J2000) (2) 46- 50 F5.2 s RAs Right ascension (J2000) (2) 52 A1 --- DE- Declination sign (J2000) (2) 53- 54 I2 deg DEd Declination (J2000) (2) 56- 57 I2 arcmin DEm Declination (J2000) (2) 59- 62 F4.1 arcsec DEs Declination (J2000) (2) 64- 69 F6.3 mag Jmag 2MASS J-band magnitude (2) 71- 76 A6 --- SpType MK spectral type 79- 83 A5 --- r_SpType Reference of the spectral type (3) 85- 90 F6.3 pc Dist ?=- Distance 92-100 A9 --- r_Dist Reference of the distance (4) 102-112 A11 --- Obs.date1 FastCam observation date 114-120 A7 --- ExpTime1 Exposure time for Obs.date1 (in s) 121 A1 --- --- [,] 123-133 A11 --- Obs.date2 FastCam observation date 135-141 A7 --- ExpTime2 Exposure time for Obs.date2 (in s) 142 A1 --- --- [,] 144-154 A11 --- Obs.date3 FastCam observation date 156-162 A7 --- ExpTime3 Exposure time for Obs.date3 (in s) 163 A1 --- --- [,] 165-175 A11 --- Obs.date4 FastCam observation date 177-183 A7 --- ExpTime4 Exposure time for Obs.date4 (in s) 184 A1 --- --- [,] 186-196 A11 --- Obs.date5 FastCam observation date 198-204 A7 --- ExpTime5 Exposure time for Obs.date5 (in s) 205 A1 --- --- [,] 207-217 A11 --- Obs.date6 FastCam observation date 219-225 A7 --- ExpTime6 Exposure time for Obs.date6 (in s) 226 A1 --- --- [,] 228-238 A11 --- Obs.date7 FastCam observation date 240-246 A7 --- ExpTime7 Exposure time for Obs.date7 (in s) 247 A1 --- --- [,] 249-259 A11 --- Obs.date8 FastCam observation date 261-267 A7 --- ExpTime8 Exposure time for Obs.date8 (in s)
Note (1): Carmencita identifier (Quirrenbach et al. 2015, 18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, 18, 897; Alonso-Floriano et al., Cat. J/A+A/577/A128). Note (2): from 2MASX (Skrutskie et al., 2006, Cat. VII/233) Note (3): References for spectral type as follows: AF15 : Alonso-Floriano et al., 2015, Cat. J/A+A/577/A128 Cru03: Cruz et al., 2003, Cat. J/AJ/126/2421 Dea12: Deacon et al., 2012ApJ...757..100D Gig10: Gigoyan et al., 2010, Cat. J/other/Ap/53.123 Gra03: Gray et al., 2003, Cat. J/AJ/126/2048 Gra06: Gray et al., 2006, Cat. J/AJ/132/161 Klutsch et al. priv. comm. Koe10: Koen et al., 2010, Cat. J/MNRAS/403/1949 Lep13: Lepine et al., 2013, Cat. J/AJ/145/102 Mon01: Montes et al., 2001, Cat. J/MNRAS/328/45 New14: Newton et al., 2014, Cat. J/AJ/147/20 PMSU : (Palomar/Michigan State University survey catalogue of nearby stars) Reid et al., 1995AJ....110.1838R and Hawley et al., 1996AJ....112.2799H, Cat. III/198, Gizis et al. 2002, Cat. J/AJ/123/3356 Ria06: Riaz et al., 2006, Cat. J/AJ/132/866 Sch05: Scholz et al., 2005, Cat. J/A+A/442/211 Sim15: Simon-Diaz et al., 2015ApJ...799..169S ZS04 : Zuckerman & Song, 2004, Cat, J/other/ARA+A/42.685 Note (4): References for Distance as follows: Ben00: Benedict et al., 2000AJ....120.1106B Cru03: Cruz et al., 2003, Cat. J/AJ/126/2421 Daw05: Dawson et al., 2005, Cat. J/PASP/117/1 Dit14: Dittmann et al., 2014ApJ...784..156D GC09 : Gatewood & Coban, 2009AJ....137..402G HD80 : Harrington & Dahn, 1980AJ.....85..454H Hen06: Henry et al., 2006AJ....132.2360H HT98 : Hershey & Taff, 1998AJ....116.1440H HIP2 : van Leeuwen 2007, Cat. I/311 Ire08: Ireland et al., 2008ApJ...678..463I Jen52: Jenkins, 1952, General catalogue of trigonometric stellar parallaxes, Yale University Observatory, USA Jen63: Jenkins, 1963, General catalogue of trigonometric stellar parallaxes, Yale University Observatory, USA Jen09: Jenkins et al., 2009, Cat. J/ApJ/704/975 Lep13: Lepine et al., 2013, Cat. J/AJ/145/102 New14: Newton et al., 2014, Cat. J/AJ/147/20 PMSU : (Palomar/Michigan State University survey catalogue of nearby stars) Reid et al., 1995AJ....110.1838R and Hawley et al., 1996AJ....112.2799H, Cat. III/198, Gizis et al. 2002, Cat. J/AJ/123/3356 Rei02 : Reid et al., 2002, Cat. J/AJ/123/2806 Ried10: Reidel et al., 2010AJ....140..897R Ria06 : Riaz et al., 2006, Cat. J/AJ/132/866 Ried14: Riedel et al., 2014, Cat. J/AJ/147/85 Sub09 : Subasavage et al., 2009AJ....137.4547S vAl95 : van Altena et al., 1995, General catalogue of trigonometric stellar parallaxes, Yale University Observatory, USA, Cat. I/238 Wein16: Weinberger et al., 2016AJ....152...24W An "a" or "b" preceding the reference indicates that no measure for this component was found but we used instead the measure of the A or B companion, respectively.
Byte-by-byte Description of file: tablea2.dat
Bytes Format Units Label Explanations
1- 5 I5 --- ADS ADS number (Aitken, 1932ADS...C......0A) 7- 12 A6 --- Comp Component 13 A1 --- n_ADS [b] Note on ADS 4241 (A-B) (1) 15- 21 F7.4 arcsec rhoL Previously published value of the angular separation 23- 28 F6.4 arcsec e_rhoL ? rms uncertainty on rhoL 30- 35 F6.2 deg thetaL Previously published value of the position angle 37- 40 F4.2 deg e_thetaL ? rms uncertainty on thetaL 44- 52 A9 yr EpL Epoch of observation of the published angular separation and position angle values (JYYYY.yyy) 54- 59 A6 --- r_rhoL Reference of the published values (2) 61- 66 F6.3 arcsec rho Measured angular separation with FastCam 68- 72 F5.3 arcsec e_rho rms uncertainty on rho 74- 79 F6.2 deg theta Measured position angle with FastCam 81- 84 F4.2 deg e_theta rms uncertainty on theta 86- 94 A9 yr Ep Epoch of observation with FastCam (JYYYY.yyy)
Note (1): DeltaI=0.35mag for A-B and DeltaI=5.39mag for AB-C (this work). Note (2): References as follows: Ben14 = Benavides, 2014, El Observador de Estrellas Dobles, 12, 21 Des11 = Desidera et al., 2011, Cat. J/A+A/533/A90 Har11 = Hartkopf et al., 2011, Cat. J/AJ/142/56 Mas12 = Mason et al., 2012, Cat. J/AJ/143/124 Mas13 = Mason et al., 2013, Cat. J/AJ/146/56 Sca11 = Scardia et al., 2011AN....332..508S Sca13 = Scardia et al., 2013MNRAS.434.2803S Schl13 = Schlimmer, 2013, Journal of Double Star Observations, 9, 230 Sim15 = Simon-Diaz et al., 2015ApJ...799..169S Thor11 = Thorel et al., 2011, Observations & Travaux 78, 20
Byte-by-byte Description of file: tablea3.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Karmn Carmencita identifier (JHHMMm+DDdA) 13 I1 --- CompNo Companion identification number 15- 19 F5.2 arcsec rho measured angular separation with FastCam 21- 23 I3 deg theta measured position angle with FastCam 25- 33 A9 yr Ep epoch of observation with FastCam (JYYYY.yyy)
Byte-by-byte Description of file: tablea4.dat
Bytes Format Units Label Explanations
1 A1 --- Type [PL] Physically or Likely bound systems 3- 13 A11 --- Karmn Carmencita identifier with component 14- 18 A5 --- m_Karmn Multiplicity index on Karmn 21 A1 --- n_Karmn Note (1) 23- 33 A11 --- WDS Washington Double Star catalogue name or New 35- 41 A7 --- Disc Discoverer code (Mason et al., 2001AJ....122.3466M, Cat. B/wds) 43- 46 A4 --- Ref Reference when no WDS name (2) 50 A1 --- l_rho [~] Limit flag on rho 51- 56 F6.3 arcsec rho ?=- Measured angular separation with FastCam 58- 62 F5.3 arcsec e_rho ? rms uncertainty on rho 64 A1 --- l_theta [~] Limit flag on theta 65- 71 F7.3 deg theta ?=- Measured position angle with FastCam 73- 77 F5.2 deg e_theta ? rms uncertainty on theta 79- 82 F4.2 mag DeltaI ?=- Measured magnitude difference in the I-band with FastCam 84- 87 F4.2 mag e_DeltaI ? rms uncertainty on DeltaI 89- 97 A9 yr Ep Epoch of observation with FastCam (JYYYY.yyy) 99 A1 --- GSC1.2 [FT-] Multiplicity flag from version 1.2 of the Guide Star Catalog (Morrison et al., 2001AJ....121.1752M, Cat. I/254) (3)
Note (1): Individual notes as follows: b = rho and theta measures in the second epoch correspond to observations with the CARMENES acquisition and guiding camera, which were carried out only for confirming physical association. c = Similar periods between Behall & Harrington (1976PASP...88..204B) and this work suggest that we are resolving the same pair. d = The B component is a double lined spectroscopic binary with a period shorter than 215.0d (Shkolnik et al., 2010ApJ...716.1522S) and is not the third component resolved here. e = We considered that this resolved binary is the spectroscopic binary identified by Bonfils et al. (2013, Cat. J/A+A/549/A109), according to the radial-velocity amplitude and period estimation of the pair. Nevertheless, we can not affirm whether the system is double or triple. f = Close visual binary in Bowler et al. (2015, Cat. J/ApJS/216/7) in one epoch. Our multi-epoch images confirm physical binding. g = It is also a spectroscopic binary. h = Faint pair for which we could not measure rho and theta with precision. The companion, also detected by Tokovinin et al. (2015, Cat. J/AJ/150/50), seems to be physically related and consistent over time with the companion identified by Montagnier et al. (2006A&A...460L..19M) at 0.068 arcsec. i = Also observed and identified as single in Law et al. (2008MNRAS.384..150L), probably due to the crossing of the companion behind the primary at the observing epoch, in agreement with the 13 a period estimated in this work. Note (2): References as follows: WD15 = Ward-Duong et al. (2015, Cat. J/MNRAS/449/2618) A15 = Ansdell et al. (2015, Cat. J/ApJ/798/41) Note (3): Guide Star Catalog multiplicity flag as follows: F = false T = true - = no data
Byte-by-byte Description of file: tablea5.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Karmn Carmencita identifier 14 A1 --- n_Karmn [Y] Y for stars associated to young stellar populations (see Table 3 in the article) 16- 21 A6 --- Comp Stellar component (A for the primary, B for the secondary and so on) 24- 27 F4.2 mag DeltaI ?=- Difference in the I-band between components 29- 32 F4.2 mag e_DeltaI ? rms uncertainty on DeltaI 34- 38 F5.2 mag Imag1 ?=- Individual I magnitude of the primary 40- 45 F6.3 mag Imag2 ?=- Individual I magnitude of the secondary 47- 52 A6 --- SpType Spectral type of the system 54- 60 A7 --- SpType1 Individual spectral type of the primary 62- 65 A4 --- SpType2 Individual spectral type of the secondary 67- 70 F4.2 Msun M1 ?=- Individual mass of the primary 72- 75 F4.2 Msun e_M1 ? rms uncertainty on M1 77 A1 --- l_M2 Limit flag on M2 78- 81 F4.2 Msun M2 ?=- Individual mass of the secondary 83- 86 F4.2 Msun e_M2 ? rms uncertainty on M2 88- 94 F7.1 a Porb ?=- Estimated orbital period (1) 95 A1 --- n_Porb [c] Note on Porb (2)
Note (1): The periods given are a lower limit, as we equal our maximum separation measured to the semimajor axis. Note (2): c: The B component of the system is too faint to estimate its mass with our MI-mass relation and the period was calculated using the stellar mass limit (0.07M). Hence, the period of this system should be considered as a lower approximation.
Byte-by-byte Description of file: tablea6.dat
Bytes Format Units Label Explanations
1- 10 A10 --- WDS Washington Double Star catalogue discoverer code (Mason et al., 2001AJ....122.3466M, Cat. B/wds) 12- 30 A19 --- Name1 Carmencita name or common name of the primary 32- 47 A16 --- SpType1 spectral type of the primary 48- 70 A23 --- Name2 Carmencita name or common name of the secondary 72- 89 A18 --- SpType2 spectral type of the secondary 91- 97 F7.2 arcsec Sep published angular separation 99 A1 --- Notes Notes (1)
Note (1): Notes as follows: a = C is background (GRB34) b = AB is separated by 2.5 arcsec (WOR4) c = "B-G" are background (LMP3) d = Simbad indicates that J03574-011 is a spectroscopic binary but we did not find any reference e = Triple system f = Primary is SB2 (Llamas, 2014, MSc thesis, Universidad Complutense de Madrid, Spain) g = Primary is an astrometric binary separated by 0.07 arcseconds (Strand, 1977AJ.....82....9S) h = The primary is a SB2 (Schoefer, 2015, MSc thesis, Institut fur Astrophysik Goettingen, Germany) i = It was also observed with the CAMELOT low resolution imager at the Observatorio del Teide (Tenerife) in September 2015 with the BVIgri filters in order to obtain more photometric information but we could not avoid the saturation of the primary j = BC is separated by 0.8 arcsec k = Primary is a SB (Simbad) l = Background source at 9.62 arcsec (TNN6) m = WDS VBS41 at 4 arcsec and 208 deg was not detected in this work nor in Davison et al. (2015AJ....149..106D). It could be an unrelated companion. The WDS "AC" designation refers to the pair in the table n = Hierarchical quadruple o = Primary is a SB1 (Schofer 2015, MSc thesis, Institut fur Astrophysik Goettingen, Germany). Two other WDS entries under the same discoverer code (STF1321) are not physically bound components p = SB2 (Bonfils et al., 2013, Cat. J/A+A/549/A109). Hawley et al. (1996AJ....112.2799H, Cat. III/198) listed in Table 1.(b) a companion at 5.0-arcsec 1.2mag fainter in V. 2MASS resolved a source 6.5 mag fainter in the J-band at 5.9-arcsec and 179deg (quality flag: AUU). Neither Law et al. (2008MNRAS.384..150L) nor Dieterich et al. (2012, Cat. J/AJ/144/64 - with NICMOS onboard Hubble detected it. We believe that Hawley et al. (1996AJ....112.2799H, Cat. III/198) made reference to the background star 2MASS J12141817+0037297 q = Other WDS entries under BU 1442 and STG 6 are unrelated sources r = Quintuple system s = Simbad mixes up the true primary GJ 3999 ("L 845-016"), the true secondary 2MASS J17174454-1148261, and the background star GJ 4000 B ("L 845-015", see Table A.3). We preserve the current (wrong) nomenclature t = C is background (HEL3) u = Other WDS entries under RAO 23 are unrelated sources v = Secondary is SB1 (Schoefer, 2015, MSc thesis, Institut fur Astrophysik Goettingen, Germany) w = AB is separated by 0.05 arcsec (BWL56) x = Bab is separated by 0.26 arcsec (BWL59). AC is background (BWL59) y = A and B are SB1 (Delfosse et al., 1999A&A...344..897D). Other WDS entries under LMP 24 are unrelated sources z = Secondary is SB2 (Schoefer, 2015, MSc thesis, Institut fur Astrophysik Goettingen, Germany)
Acknowledgements: Miriam Cortes-Contreras, micortes(at)ucm.es References: Alonso-Floriano et al., Paper I, 2015A&A...577A.128A, Cat. J/A+A/577/A128
(End) Patricia Vannier [CDS] 04-Sep-2016
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