1997A&A...322..511S


Query : 1997A&A...322..511S

1997A&A...322..511S - Astronomy and Astrophysics, volume 322, 511-522 (1997/6-2)

Doppler imaging of stellar surface structure. IV. The rapidly-rotating G5III-IV star HD 112313 = IN Comae.

STRASSMEIER K.G., HUBL B. and RICE J.B.

Abstract (from CDS):

We present the first Doppler image of the rapidly-rotating G5 giant in the unusual IN Comae triple system. Our average image from three spectral regions and two continuum color indices shows mostly low to high latitude features but not a prominent polar cap-like spot. A parameter study of the stellar and atomic input quantities aims to better quantify the reliability of our Doppler image. A time series of 330 high-precision Stroemgren by and Johnson V measurements in 1996 show only one real photometric period (5.913±0.005days) that we interpret to be the rotation period of the G5 giant. We found no evidence for the 0.25-day period claimed earlier by Kuczawska & Mikolajewski (1993AcA....43..445K). Optical spectra of several activity indicators are presented and discussed. IN Comae exhibits an unusual broad Hα emission line and a central absorption feature. This profile shape is also seen for the CaII infrared-triplet lines as well as for the sodium doublet and the HeI D3 line. No LiI 6707.8 line is present. New radial velocity measurements from our red-wavelength spectra do not indicate a short-period binary but would be consistent with the G5 star being the outer, third component of this triple system.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: imaging - stars: individual: IN Com - stars: chromospheres - starspots - binaries: close

Simbad objects: 16

goto View the references in ADS

Number of rows : 16
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 * omi02 Eri Er* 04 15 16.3196189945 -07 39 10.330779018 5.69 5.25 4.43 3.74 3.29 K0V 774 0
2 V* V410 Tau Or* 04 18 31.1081296680 +28 27 16.155955728   12.13 10.75 8.45 9.408 K3Ve 444 0
3 * omi UMa PM* 08 30 15.8701566400 +60 43 05.405606188 4.79 4.27 3.42 2.76 2.31 G5III: 236 1
4 HD 94481 * 10 54 17.7770384160 -13 45 28.935080424   6.487 5.651     G4III-IIIb 59 0
5 HD 112299 PM* 12 55 28.2683520792 +25 44 17.043207216   8.92 8.38     F8V 43 0
6 PN LoTr 5 PN 12 55 33.7471108416 +25 53 30.559286040   9.72 8.88     G5III-IV 202 0
7 BD+26 2407 * 12 56 05.1973531152 +26 01 18.886638324   10.09 9.73     F2 14 0
8 V* IN Vir RS* 13 24 24.1561749744 -02 18 54.937707948   10.33 9.131   7.900 K2III 58 0
9 V* FK Com PM* 13 30 46.7996390256 +24 13 57.781233768   9.04 8.245   7.204 G4III 361 1
10 HD 119458 SB* 13 42 43.4296862592 +34 59 20.474475072   6.82 5.96     G5III-IIIbFe-0.5 49 0
11 V* UZ Lib SB* 15 32 23.2091053080 -08 32 00.933064764   10.12 9.115   7.904 K0III 115 1
12 * sig CrB RS* 16 14 40.85557 +33 51 30.9497           F6V+G0V 488 0
13 HD 148604 * 16 29 46.9222648416 -14 33 02.872820448   6.481 5.665     G5III/IV 61 0
14 HD 173920 * 18 44 55.3992039816 +54 53 49.864895556   7.088 6.259     G5III 34 0
15 * bet Aql PM* 19 55 18.7928429719 +06 24 24.351242346 5.040 4.560 3.710 3.05 2.56 G8IV 534 0
16 HD 199178 Ro* 20 53 53.6520433056 +44 23 11.080108284   7.98 7.24     G5III-IV 207 1

To bookmark this query, right click on this link: simbad:objects in 1997A&A...322..511S and select 'bookmark this link' or equivalent in the popup menu


2022.05.26-16:10:30

© Université de Strasbourg/CNRS

    • Contact