J/AJ/130/794 Radial velocities and BV photometry of HD 144110 (Fekel+, 2005)
Chromospherically active stars.
XXV. HD 144110=EV Draconis, a double-lined dwarf binary.
Fekel F.C., Henry G.W., Lewis C.
<Astron. J., 130, 794-798 (2005)>
=2005AJ....130..794F 2005AJ....130..794F (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, spectroscopic ; Stars, variable ; Photometry, UBV ;
Radial velocities
Keywords: binaries: spectroscopic - stars: late-type - stars: spots -
stars: variables: other
Abstract:
New spectroscopic and photometric observations of HD 144110 have been
used to obtain an improved orbital element solution and determine some
basic properties of the system. This chromospherically active,
double-lined spectroscopic binary has an orbital period of
1.6714012days and a circular orbit. We classify the components as G5 V
and K0 V and suggest that they are slightly metal-rich. The
photometric observations indicate that the rotation of HD 144110 is
synchronous with the orbital period. Despite the short orbital period,
no evidence of eclipses is seen in our photometry.
Description:
From 1995 April to 2004 June we obtained 21 high-resolution
spectrograms of HD 144110 with the Kitt Peak National Observatory
(KPNO) coude feed telescope, coude spectrograph, and a TI CCD
detector.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
16 01 47.5 +51 20 52 HD 144110 = V* EV Dra
15 59 07.5 +50 38 21 HD 143595 = AG+50 1134
16 02 05.6 +52 54 57 HD 144204 = AG+53 1017
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 40 21 Radial velocities of HD 144110
table2.dat 40 328 Photometric observations of HD 144110
--------------------------------------------------------------------------------
See also:
V/76 : Chromospherically Active Binaries (Strassmeier+ 1993)
J/AJ/105/2265 : Spectroscopy and photometry of HD 212280 (Fekel+ 1993)
J/AJ/129/1669 : BV photometry of HD 37824, HD 181809, and HD 217188
(Fekel+, 2005)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.3 --- HJD Heliocentric Julian Date
13- 17 F5.3 --- Phase Phase
19- 23 F5.1 km/s RVA Radial velocity of component A
24 A1 --- f_RVA Flag on RVA (1)
25- 28 F4.1 km/s (O-C)A Velocity residual (Observed-Computed)
of component A
30- 35 F6.1 km/s RVB Radial velocity of component B
36 A1 --- f_RVB Flag on RVB (1)
37- 40 F4.1 km/s (O-C)B Velocity residual (Observed-Computed)
of component B
--------------------------------------------------------------------------------
Note (1): A "a" indicates a blended component, velocity given zero weight.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 12 F12.4 --- HJD Heliocentric Julian Date
14- 19 F6.3 mag B(v-c) ?=99.999 Variable-Comparison differential mag
in B (1)
21- 26 F6.3 mag V(v-c) ?=99.999 Variable-Comparison differential mag
in V (1)
28- 33 F6.3 mag B(ch-c) ?=99.999 Check-Comparison differential mag
in B (1)
35- 40 F6.3 mag V(ch-c) ?=99.999 Check-Comparison differential mag
in V (1)
--------------------------------------------------------------------------------
Note (1): The '99.999' signifies that the differential magnitude was discarded
because its internal standard deviation exceeded 0.01mag.
----------------------------------------
Star Note Vmag B-V SpType
----------------------------------------
HD 143595 Comparison 7.84 1.18 K2 III
HD 144204 Check 5.93 1.50 K5 III
----------------------------------------
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Fekel et al., Paper I 1985AJ.....90.2581F 1985AJ.....90.2581F
Fekel et al., Paper II 1986ApJS...60..551F 1986ApJS...60..551F
Fekel et al., Paper III 1987AJ.....94..726F 1987AJ.....94..726F
Fekel, Paper IV 1988AJ.....95..215F 1988AJ.....95..215F
Fekel et al., Paper V 1988AJ.....96.1426F 1988AJ.....96.1426F
Fekel et al., Paper VI 1989AJ.....97..202F 1989AJ.....97..202F
Fekel & Eitter, Paper VII 1989AJ.....97.1139F 1989AJ.....97.1139F
Fekel, Paper VIII 1991AJ....101.1489F 1991AJ....101.1489F
Fekel & Marschall, Paper XIX 1991AJ....102.1439F 1991AJ....102.1439F
Fekel et al., Paper X 1993AJ....105.2265F 1993AJ....105.2265F, Cat. J/AJ/105/2265
Fekel et al., Paper XI 1993AJ....106.2370F 1993AJ....106.2370F
Fekel et al., Paper XII 1994AJ....108..694F 1994AJ....108..694F
Fekel et al., Paper XIII 1994AJ....108.1936F 1994AJ....108.1936F
Fekel et al., Paper XIV 1995AJ....109.2821F 1995AJ....109.2821F
Fekel, Paper XV 1996AJ....112..269F 1996AJ....112..269F
Fekel, Paper XVI 1997AJ....114.2747F 1997AJ....114.2747F
Fekel et al., Paper XVII 1998AJ....115.1153F 1998AJ....115.1153F
Fekel & Henry, Paper XVIII 2000AJ....120.3265F 2000AJ....120.3265F
Fekel et al., Paper XIX 2001AJ....122..991F 2001AJ....122..991F
Fekel et al., Paper XX 2001AJ....122.3447F 2001AJ....122.3447F
Fekel et al., Paper XXI 2002AJ....124.1064F 2002AJ....124.1064F
Fekel et al., Paper XXII 2004AJ....127.2303F 2004AJ....127.2303F
Fekel, Paper XXIII 2004AJ....127.2931F 2004AJ....127.2931F
Fekel & Henry, Paper XXIV 2005AJ....129.1669F 2005AJ....129.1669F, Cat. J/AJ/129/1669
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 26-Apr-2006