Cited by 138Astrophysics and Star Formation StudiesStellar, planetary, and galactic studiesAstronomy and Astrophysical Research

A MAGELLAN MIKE AND SPITZER MIPS STUDY OF 1.5-1.0 M☉STARS IN SCORPIUS-CENTAURUS

Open access
Chen, Christine H., Mamajek, Eric E., Bitner, Martin A., Pecaut, Mark, Su, Kate Y. L., Weinberger, Alycia J.·2011·The Astrophysical Journal

Abstract

We obtained Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) 24 μm and 70 μm observations of 182 nearby, Hipparcos F-and G-type common proper motion single and binary systems in the nearest OB association, Scorpius-Centaurus.We also obtained Magellan/MIKE R ∼ 50,000 visual spectra at 3500-10500 Å for 181 candidate ScoCen stars in single and binary systems.Combining our MIPS observations with those of other ScoCen stars in the literature, we estimate 24 μm F+G-type disk fractions of 9/27 (33% ± 11%), 21/67 (31% ± 7%), and 25/71 (35% ± 7%) for Upper Scorpius (∼10 Myr), Upper Centaurus Lupus (∼15 Myr), and Lower Centaurus Crux (∼17 Myr), respectively.We confirm previous IRAS and MIPS excess detections and present new discoveries of 41 protoplanetary and debris disk systems, with fractional infrared luminosities ranging from L IR /L * = 10 -5 to 10 -2 and grain temperatures ranging from T gr = 40-300 K.We searched for an increase in 24 μm excess at an age of 15-20 Myr, consistent with the onset of debris production predicted by coagulation N-body simulations of outer planetary systems.We found such an increase around 1.5 M stars but discovered a decrease in the 24 μm excess around 1.0 M stars.We additionally discovered that the 24 μm excess around 1.0 M stars is larger than predicted by self-stirred models.Finally, we found a weak anti-correlation between fractional infrared luminosity (L IR /L * ) and chromospheric activity (R HK ), that may be the result of differences in stellar properties, such as mass, luminosity, and/or winds.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1088/0004-637x/738/2/122

Cites

87 of 87 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Using the UCL subgroup velocity vector from Chen et al. (2011), the predicted RV of an ideal UCL member at the position of J1407 is γ = 7.0 km/s, with predicted rms scatter amongst members of ±1.3 km/s.

    “Using the Upper Cen-Lup (UCL) subgroup velocity vector from Chen et al. (2011) ( U, V, W = -5.1 ± 0.6, -19.7 ± 0.4, -4.6 ± 0.3 km s -1 ), we predict the RV of an ideal UCL member at the position of J1407 to be γ = 7.0 km s -1 , with a predicted rms scatter amongst members of ± 1.3 kms -1 .”

    From Mass and period limits on the ringed companion transiting the young star J1407 (2015) · cites this paper as Chen et al. 2011

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Houk, N. 1982, Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars, Vol. 3 (Ann Arbor, MI: Univ. Michigan)
  2. Houk, N., & Smith-Moore, A. P. 1988, Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars, Vol. 4 (Ann Arbor, MI: Univ. Michigan)

Cited by

Sorted by citations

Authors
Chen, C. H., Mamajek, E. E., Bitner, M. A., Pecaut, M., Su, K. Y. L., & Weinberger, A. J.
Affiliations
  • Space Telescope Science Institute (US)
  • University of Rochester (US)
  • University of Arizona (US)
  • Carnegie Institution for Science (US)
Venue
The Astrophysical Journal
Published
2011-08-18
Volume
738
Issue
2
Pages
122
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2068806560
Cited by
138
References
86
Citations by year
2026: 3 · 2025: 2 · 2023: 6 · 2022: 4 · 2021: 5 · 2020: 13 · 2019: 6 · 2018: 13 · 2017: 11 · 2016: 15 · 2015: 16 · 2014: 13 · 2013: 17 · 2012: 14
FWCI
7.34
Type
journal article
Language
he
Open access
Locations
The Astrophysical Journal (publishedVersion)
Funders
  • National Aeronautics and Space Administration
  • California Institute of Technology
  • Jet Propulsion Laboratory
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysics and Star Formation Studies
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
  • Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
Keywords
Scorpius-Centaurus OB association, protoplanetary disks, debris disks, disk fraction, stellar ages, Upper Scorpius, Upper Centaurus Lupus, Lower Centaurus Crux, chromospheric activity, stellar winds, binary stars

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review