2005A&A...439.1137F


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.04CET20:53:44

2005A&A...439.1137F - Astronomy and Astrophysics, volume 439, 1137-1148 (2005/9-1)

PHOENIX model chromospheres of mid- to late-type M dwarfs.

FUHRMEISTER B., SCHMITT J.H.M.M. and HAUSCHILDT P.H.

Abstract (from CDS):

We present semi-empirical model chromospheres computed with the atmosphere code PHOENIX. The models are designed to fit the observed spectra of five mid- to late-type M dwarfs. Next to hydrogen lines from the Balmer series we used various metal lines, e.g. from FeI, for the comparison between data and models. Our computations show that an NLTE treatment of C,N,O impacts on the hydrogen line formation, while NLTE treatment of less abundant metals such as nickel influences the lines of the considered species itself. For our coolest models we investigated also the influence of dust on the chromospheres and found that dust increases the emission line flux. Moreover we present an (electronically published) emission line list for the spectral range of 3100 to 3900 and 4700 to 6800Å for a set of 21 M dwarfs and brown dwarfs. The line list includes the detection of the Nai D lines in emission for a L3 dwarf.

Abstract Copyright:

Journal keyword(s): stars: activity - stars: late-type - stars: chromospheres

VizieR on-line data: <Available at CDS (J/A+A/439/1137): stars.dat table1.dat>

Simbad objects: 22

goto Full paper

goto View the reference in ADS

Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 G 272-61B Er* 01 39 01.6334059022 -17 57 01.121866655           M6V 798 0
2 HD 42581 Er* 06 10 34.6152510171 -21 51 52.658021185 10.801 9.607 8.125 7.164 6.121 M1V 411 0
3 V* YZ CMi Er* 07 44 40.1726285952 +03 33 08.877830321 13.761 12.831 11.225 9.958 8.263 M4.0Ve 795 0
4 G 51-15 Er* 08 29 49.3528237575 +26 46 33.626773321   16.87   14.736   M6.5Ve 258 0
5 V* AZ Cnc Er* 08 40 29.6796780769 +18 24 08.726610387   19.2 17.59 16.6 13.45 M6.0V 76 0
6 LP 666-9 LM* 08 53 36.1607609203 -03 29 32.201339067     18.959 16.781 14.487 M9Ve 229 0
7 G 9-38 Er* 08 58 15.061776 +19 45 46.96020   15.58   13.40   M7V+M7V 98 0
8 G 9-38A PM* 08 58 15.0737928221 +19 45 48.243897495     13.93     M8Ve 88 0
9 BD+20 2465 Er* 10 19 36.2808024653 +19 52 12.014037746   10.82 9.52 9.19   dM3 1175 0
10 LP 731-58 Er* 10 48 12.6142482968 -11 20 09.609457904     15.784 16.01 11.25 M6.5V 145 0
11 DENIS J104814.6-395606 LM* 10 48 14.5734267094 -39 56 06.843210566     17.532 15.051 12.67 M8.5Ve: 115 0
12 Wolf 359 Er* 10 56 28.826208 +07 00 52.34400 16.706 15.541 13.507 11.684 9.507 dM6 639 0
13 DENIS J1058.7-1548 BD* 10 58 47.8360754207 -15 48 17.254347029       20.095 17.764 L3V 86 2
14 LP 732-94 LM* 11 21 49.1720839605 -13 13 08.728765179     19.57     M8.5V 124 0
15 V* GL Vir Er* 12 18 59.3999178645 +11 07 33.770248089   15.68 13.90 13.55   M4.5Ve 144 0
16 Wolf 461 Er* 13 00 33.5210484063 +05 41 08.003260810   15.12   13.041   M4.5Ve 115 0
17 NAME Kelu-1 BD* 13 05 40.1737206066 -25 41 05.830344467         16.85 L2+L3.5 239 0
18 2MASS J13153094-2649513 BD* 13 15 30.8602676392 -26 49 51.844923573           L5e 39 1
19 NAME Proxima Centauri Er* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 1017 0
20 LP 914-54 Er* 14 56 38.2643948965 -28 09 48.622430247     17.141 14.863 12.433 M7.0Ve 140 0
21 VB 8 Er* 16 55 35.2561420232 -08 23 40.752903617   18.7 16.916 14.566 12.24 M7Ve 392 0
22 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 331 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2005A&A...439.1137F and select 'bookmark this link' or equivalent in the popup menu


2021.03.04-20:53:44

© Université de Strasbourg/CNRS

    • Contact