2013A&A...560A..13M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST09:59:28

2013A&A...560A..13M - Astronomy and Astrophysics, volume 560A, 13-13 (2013/12-1)

The Monitor Project: stellar rotation at 13 Myr. I. A photometric monitoring survey of the young open cluster h Persei.

MORAUX E., ARTEMENKO S., BOUVIER J., IRWIN J., IBRAHIMOV M., MAGAKIAN T., GRANKIN K., NIKOGOSSIAN E., CARDOSO C., HODGKIN S., AIGRAIN S. and MOVSESSIAN T.A.

Abstract (from CDS):

We aim at constraining the angular momentum evolution of low-mass stars by measuring their rotation rates when they begin to evolve freely towards the zero-age main sequence (ZAMS), i.e., after the disk accretion phase has stopped. We conducted a multisite photometric monitoring of the young open cluster h Persei, which has an age of ∼13Myr. The observations were done in the I-band using four different telescopes, and the variability study is sensitive to periods from less than 0.2 day to 20 days. Rotation periods are derived for 586 candidate cluster members over the mass range 0.4≤M/M≤1.4. The rotation period distribution indicates a slightly higher fraction of fast rotators for the lower mass objects, although the lower and upper envelopes of the rotation period distribution, located respectively at ∼0.2-0.3d and ∼10d, are remarkably flat over the whole mass range. We combine this period distribution with previous results obtained in younger and older clusters to model the angular momentum evolution of low mass stars during the pre-main sequence (PMS) phase. The h Per cluster provides the first statistically robust estimate of the rotational period distribution of solar-type and lower mass stars at the end of the PMS accretion phase (≥10Myr). The results are consistent with models that assume significant core-envelope decoupling during the angular momentum evolution to the ZAMS.

Abstract Copyright:

Journal keyword(s): stars: rotation - stars: low-mass - open clusters and associations: individual: h Per

VizieR on-line data: <Available at CDS (J/A+A/560/A13): table2.dat>

Nomenclature: Table 2: [MAB2013] NNN (Nos 1-586).

Simbad objects: 14

goto Full paper

goto View the reference in ADS

Number of rows : 14

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 869 13 * 02 16 49.8174365342 +57 10 09.520800048   14.44 14.2804   13.5594 ~ 3 0
2 NGC 869 431 * 02 18 03.9527007778 +57 03 50.936991502   13.426 12.805     ~ 4 0
3 NGC 869 OpC 02 19 00 +57 07.7           ~ 426 0
4 NGC 884 OpC 02 22 23 +57 07.5           ~ 445 0
5 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2979 0
6 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 1977 1
7 NGC 2168 OpC 06 08 54 +24 20.0           ~ 457 0
8 NGC 2323 OpC 07 02 47.5 -08 20 16           ~ 154 0
9 CPD-24 2196 Y*O 07 18 34.4497736484 -24 55 15.685327840 10.882 10.72 10.76 10.743 10.773 B5/6V 15 0
10 NGC 2362 OpC 07 18 41 -24 57.3     4.1     ~ 361 0
11 NGC 2516 OpC 07 58 04 -60 45.2           ~ 587 0
12 NGC 2547 OpC 08 09 52.360 -49 10 35.01           ~ 310 0
13 HD 68810 * 08 11 50.3725763234 -49 32 43.841784177   10.31 10.22     B9V 14 0
14 NAME Ass Cep OB 3b As* 22 55 00.0 +62 35 00           ~ 32 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013A&A...560A..13M and select 'bookmark this link' or equivalent in the popup menu


2020.07.12-09:59:28

© Université de Strasbourg/CNRS

    • Contact