☆ 4.7 Article

A revised age greater than 50 Myr for the young cluster IC 4665

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Astronomy & Astrophysics

Gaia Data Release 3 Summary of the content and survey properties

A. Vallenari et al.

Summary: The third data release of the Gaia mission includes a wide range of new data products, such as an expanded radial velocity survey and extensive astrophysical characterisation. This release provides unprecedented quantity, quality, and variety of source astrophysical data, including spectrophotometry, radial velocities, variables, and astrophysical parameters. It will greatly enhance the potential of Gaia's astrometric, photometric, and radial velocity surveys.

ASTRONOMY & ASTROPHYSICS (2023)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: Homogenisation of stellar parameters and elemental abundances

A. Hourihane et al.

Summary: The Gaia-ESO Survey is a public spectroscopic survey that observed over 100,000 stars in the Milky Way from 2011 to 2018 and released its final results in May 2022. It is unique in its coverage of stars of all spectral types and provides a comprehensive database of stellar properties and characteristics. The survey's final data release includes radial velocities, stellar parameters, elemental abundances, rotational velocities, and other important information for more than 114,000 stars.

ASTRONOMY & ASTROPHYSICS (2023)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: empirical estimates of stellar ages from lithium equivalent widths (eagles)

R. D. Jeffries et al.

Summary: We have developed an empirical model of age-dependent lithium depletion in stars and used it to estimate ages for a large sample of stars in open clusters. Our model provides age estimates with a precision of 0.1 dex in log age, especially for coeval groups. The method is validated by comparing the estimated ages with published ages for young moving groups and shows good agreement.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics

R. J. Jackson et al.

Summary: Spectroscopy from the Gaia-ESO Survey has been combined with Gaia data to assign membership probabilities to targets towards 63 Galactic open clusters and 7 globular clusters. Most targets are identified as highly probable cluster members, and the inclusion of GES radial velocities helps reduce false positives. This study provides an ideal dataset for investigating the photometric and chemical properties of clusters.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Public Spectroscopic Survey: Implementation, data products, open cluster survey, science, and legacy

S. Randich et al.

Summary: This article provides an overview of the implementation, science results, and potential of the Gaia-ESO Public Spectroscopic Survey. The survey has successfully determined radial velocities, stellar parameters, and elemental abundances for a large sample of Galactic stars. The final catalogue of the survey, along with advanced data products, will be released in the first half of 2022.

ASTRONOMY & ASTROPHYSICS (2022)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO survey: constraining evolutionary models and ages for young low mass stars with measurements of lithium depletion and rotation

A. S. Binks et al.

Summary: A growing concern has emerged regarding the discrepancies between standard stellar models and observations of pre-main sequence stars in clusters. In this study, researchers tested different models, including those with surface magnetic fields and cool starspots, and found that magnetic models provide better fit for the color-magnitude diagrams and lithium depletion patterns. The study also revealed a correlation between rotation periods and the brightness and lithium depletion of stars.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

添加到收藏夹

Article Astronomy & Astrophysics

Lithium depletion boundary, stellar associations, and Gaia

F. J. Galindo-Guil et al.

Summary: This study aims to revise previous lithium depletion boundary (LDB) ages in stellar associations using Gaia parallaxes and bolometric luminosity estimations. By comparing different evolutionary models, we located the LDB and derived ages for the stellar associations. Furthermore, we found that the 32 Ori MG is likely composed of multiple populations with different ages.

ASTRONOMY & ASTROPHYSICS (2022)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products☆

G. Gilmore et al.

Summary: The Gaia-ESO Public Spectroscopic Survey is an important project that aims to obtain astrophysical parameters and elemental abundances for a large sample of stars, providing valuable data for the homogenisation of other stellar surveys. The survey obtained a significant amount of spectra and the final data set will be released in the coming years.

ASTRONOMY & ASTROPHYSICS (2022)

添加到收藏夹

Article Astronomy & Astrophysics

Gaia Early Data Release 3 The astrometric solution

L. Lindegren et al.

Summary: Gaia EDR3 provides full astrometric data for 1.468 billion sources, including 585 million with five-parameter solutions and 882 million with six parameters, as well as mean positions at J2016.0 for an additional 344 million sources. Five-parameter solutions are generally more accurate and available for 93% of sources brighter than the 17th magnitude, with median uncertainties of 0.02-0.03 mas for parallax and proper motion at G = 9-14, and around 0.5 mas at G = 20. Extensive characterization of the solutions' statistical properties is provided, including the estimated angular power spectrum of parallax bias from quasars.

ASTRONOMY & ASTROPHYSICS (2021)

添加到收藏夹

Article Astronomy & Astrophysics

Gaia Early Data Release 3 Parallax bias versus magnitude, colour, and position

L. Lindegren et al.

Summary: The study found that the parallax bias in Gaia EDR3 data is dependent on factors such as magnitude, color, and ecliptic latitude of the source in a non-trivial way. While a definitive method for correcting the parallax is not yet possible, tentative expressions have been provided for researchers to use at their discretion.

ASTRONOMY & ASTROPHYSICS (2021)

添加到收藏夹

Article Astronomy & Astrophysics

Gaia Early Data Release 3: Photometric content and validation

M. Riello et al.

Summary: This paper focuses on the photometric content in Gaia Early Data Release 3 (Gaia EDR3), describing the input data, algorithms, processing, and validation of results. Significant improvements were made in the processing, particularly in the preprocessing and calibration of blue and red photometer data. The overall quality of calibrated mean photometry in Gaia EDR3 is superior to DR2 for all bands.

ASTRONOMY & ASTROPHYSICS (2021)

添加到收藏夹

Article Astronomy & Astrophysics

A ∼75 per cent occurrence rate of debris discs around F stars in the β Pic moving group

Nicole Pawellek et al.

Summary: This paper examines the population of F stars in the 23 Myr-old beta Pictoris moving group (BPMG) and finds that 9/12 targets in the group possess debris discs. Comparing the results with other moving groups and field stars, it is revealed that young moving groups have a comparable or higher incidence rate of debris discs and tend to have smaller discs compared to field stars. The study also suggests that the depletion of debris discs in young populations may be attributed to embedded planets and different birth environments.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

添加到收藏夹

Article Astronomy & Astrophysics

Updated parameters of 1743 open clusters based on Gaia DR2

W. S. Dias et al.

Summary: This study presents a homogeneous sample of fundamental parameters of open clusters in our Galaxy based on Gaia DR2 data, providing parameters for 1743 open clusters and a list of potentially dubious clusters for future investigations. Additionally, a systematic offset of (-0.05 +/- 0.04) mas was found when comparing open cluster distances obtained from isochrone fitting with those obtained from a maximum likelihood estimate of individual member parallaxes.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO survey: a lithium depletion boundary age for NGC 2232

A. S. Binks et al.

Summary: Astrometry and photometry data from Gaia, combined with spectroscopic data from the Gaia-ESO Survey, were used to identify the lithium depletion boundary in the young cluster NGC 2232. By comparing the location of the LDB in absolute color-magnitude diagrams with standard models, an age of 38 +/- 3 Myr was inferred. Models incorporating high levels of magnetic activity and starspot coverage fractions >50 percent showed the best agreement between LDB and CMD ages, particularly at ages of 45-50 Myr.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

添加到收藏夹

Article Astronomy & Astrophysics

Searching for debris discs in the 30 Myr open cluster

N. Miret-Roig et al.

ASTRONOMY & ASTROPHYSICS (2020)

添加到收藏夹

Article Astronomy & Astrophysics

The SPOTS Models: A Grid of Theoretical Stellar Evolution Tracks and Isochrones for Testing the Effects of Starspots on Structure and Colors

Garrett Somers et al.

ASTROPHYSICAL JOURNAL (2020)

添加到收藏夹

Article Astronomy & Astrophysics

An Analysis of the Shapes of Interstellar Extinction Curves. VII. Milky Way Spectrophotometric Optical-through-ultraviolet Extinction and Its R-dependence** Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555. These observations are associated with program 13760.

E. L. Fitzpatrick et al.

ASTROPHYSICAL JOURNAL (2019)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: open clusters in Gaia-DR1 A way forward to stellar age calibration

S. Randich et al.

ASTRONOMY & ASTROPHYSICS (2018)

添加到收藏夹

Article Astronomy & Astrophysics

The empirical Gaia G-band extinction coefficient

C. Danielski et al.

ASTRONOMY & ASTROPHYSICS (2018)

添加到收藏夹

Article Astronomy & Astrophysics

Circumstellar disc lifetimes in numerous galactic young stellar clusters

A. J. W. Richert et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2018)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: open clusters in Gaia-DR1 A way forward to stellar age calibration

S. Randich et al.

ASTRONOMY & ASTROPHYSICS (2018)

添加到收藏夹

Article Astronomy & Astrophysics

The empirical Gaia G-band extinction coefficient

C. Danielski et al.

ASTRONOMY & ASTROPHYSICS (2018)

添加到收藏夹

Article Astronomy & Astrophysics

The Lithium Depletion Boundary and the Age of the Hyades Cluster

Eduardo L. Martin et al.

ASTROPHYSICAL JOURNAL (2018)

添加到收藏夹

Article Astronomy & Astrophysics

The Gaia-ESO Survey: lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars

R. D. Jeffries et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

添加到收藏夹

Article Astronomy & Astrophysics

Age Spreads and the Temperature Dependence of Age Estimates in Upper Sco

Qiliang Fang et al.

ASTROPHYSICAL JOURNAL (2017)

添加到收藏夹

Article Astronomy & Astrophysics

The First 40 Million Years of Circumstellar Disk Evolution: The Signature of Terrestrial Planet Formation

Huan Y. A. Meng et al.

ASTROPHYSICAL JOURNAL (2017)

添加到收藏夹

Article Astronomy & Astrophysics

Magnetic inhibition of convection and the fundamental properties of low-mass stars III. A consistent 10 Myr age for the Upper Scorpius OB association

Gregory A. Feiden

ASTRONOMY & ASTROPHYSICS (2016)

添加到收藏夹

Article Astronomy & Astrophysics

Magnetic inhibition of convection and the fundamental properties of low-mass stars III. A consistent 10 Myr age for the Upper Scorpius OB association

Gregory A. Feiden

ASTRONOMY & ASTROPHYSICS (2016)

添加到收藏夹

Article Astronomy & Astrophysics

New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit

Isabelle Baraffe et al.

ASTRONOMY & ASTROPHYSICS (2015)

添加到收藏夹

Article Astronomy & Astrophysics

Cumulative theoretical uncertainties in lithium depletion boundary age

E. Tognelli et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

添加到收藏夹

Article Astronomy & Astrophysics

New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit

Isabelle Baraffe et al.

ASTRONOMY & ASTROPHYSICS (2015)

添加到收藏夹

Article Astronomy & Astrophysics

The effect of star-spots on the ages of low-mass stars determined from the lithium depletion boundary

R. J. Jackson et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

添加到收藏夹

Article Astronomy & Astrophysics

On the age of the β Pictoris moving group

Eric E. Mamajek et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

添加到收藏夹

Article Astronomy & Astrophysics

Pre-main-sequence isochrones - II. Revising star and planet formation time-scales

Cameron P. M. Bell et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

添加到收藏夹

Article Astronomy & Astrophysics

A lithium depletion boundary age of 22 Myr for NGC 1960

R. D. Jeffries et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

添加到收藏夹

Article Astronomy & Astrophysics

Debris discs in the 27 Myr old open cluster IC 4665

R. Smith et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2011)

添加到收藏夹

Review Astronomy & Astrophysics

The Ages of Stars

David R. Soderblom

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 48 (2010)

添加到收藏夹

Article Astronomy & Astrophysics

EMPLOYING A NEW, BVIc PHOTOMETRIC SURVEY OF IC 4665 TO INVESTIGATE THE AGE OF THIS YOUNG OPEN CLUSTER

P. A. Cargile et al.

ASTRONOMICAL JOURNAL (2010)

添加到收藏夹

Article Astronomy & Astrophysics

Timescale of mass accretion in pre-main-sequence stars

D. Fedele et al.

ASTRONOMY & ASTROPHYSICS (2010)

添加到收藏夹

Article Astronomy & Astrophysics

IDENTIFICATION OF THE LITHIUM DEPLETION BOUNDARY AND AGE OF THE SOUTHERN OPEN CLUSTER BLANCO 1

P. A. Cargile et al.

ASTROPHYSICAL JOURNAL LETTERS (2010)

添加到收藏夹

Article Astronomy & Astrophysics

IC 2602: a lithium depletion boundary age and new candidate low-mass stellar members

P. D. Dobbie et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2010)

添加到收藏夹

Article Astronomy & Astrophysics

Are pre-main-sequence stars older than we thought?

Tim Naylor

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2009)

添加到收藏夹

Article Astronomy & Astrophysics

Low-mass members of the young cluster IC 4665 and pre-main-sequence lithium depletion

R. D. Jeffries et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2009)

添加到收藏夹

Article Astronomy & Astrophysics

Detection of the lithium depletion boundary in the young open cluster IC 4665

S. Manzi et al.

ASTRONOMY & ASTROPHYSICS (2008)

添加到收藏夹

Article Astronomy & Astrophysics

Spitzer 24 mu m observations of open cluster IC 2391 and debris disk evolution of FGK stars

Nick Siegler et al.

ASTROPHYSICAL JOURNAL (2007)

添加到收藏夹

Article Astronomy & Astrophysics

On the difference between nuclear and contraction ages

W. Lyra et al.

ASTRONOMY & ASTROPHYSICS (2006)

添加到收藏夹

Article Astronomy & Astrophysics

The lithium depletion boundary in NGC 2547 as a test of pre-main-sequence evolutionary models

RD Jeffries et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2005)

添加到收藏夹

Article Astronomy & Astrophysics

Theoretical examination of the lithium depletion boundary

CJ Burke et al.

ASTROPHYSICAL JOURNAL (2004)

添加到收藏夹

Article Astronomy & Astrophysics

Spectroscopy of very low mass stars and brown dwarfs in IC 2391:: Lithium depletion and Hα emission

DBY Navascués et al.

ASTROPHYSICAL JOURNAL (2004)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.