Open Cluster Study in the LAMOST DR2 Jing Zhong （ Shanghai Astronomical Observatory ） Collaborators: Li Chen, Zhengyi Shao.

Slides:

Advertisements

Similar presentations

LOCS – LAMOST Open Cluster Survey. Why Open Clusters ? -- test-bed stellar evolution theory Galactic disc structure & evolution -- a lot more reasons.

Advertisements

Open Clusters: At The Interface of Stellar Evolution and Stellar Dynamics Robert D. Mathieu University of Wisconsin - Madison.

Xiaohu Yang Shanghai Astronomical Observatory Partner group of MPA Collaborators: Yu Wang (SHAO), H.J. Mo (UMass), F.C. van den Bosch (MPIA), Neal Katz.

Dwarf Galaxies in Group Environments Marla Geha Carnegie Observatories (OCIW)

An Abundance Spread in the Bootes I Dwarf Spheroidal Galaxy? John E. Norris The Australian National University Gerard Gilmore University of Cambridge R.F.G.

The Age-Metallicity-Velocity relation in the nearby disk Borja Anguiano Astrophysikalisches Institut Potsdam (AIP) K. Freeman (ANU), E. Wylie de Boer (ANU),

基于 LAMOST 巡天数据的大样本 M 巨星搜寻和分类钟靖中国科学院上海天文台. M giants Red ： surface temperature lower than 4000K Luminous: M J from to mag (Covey et al.2007)

The accuracy of Giraffe measurements of radial velocity in young clusters Richard Jackson – Keele University in collaboration with Rob Jeffries and Amy.

A brief introduction of SDSS II data Liu Chengze Shanghai Astronomical Observatory.

Globalization of stellar data: all-sky catalogues and open clusters A.E. Piskunov 1 and N.V. Kharchenko 2 1 Institute of astronomy RAS, Moscow, Russia.

Open Clusters and Galactic Disk Observations with LAMOST Li CHEN Shanghai Astronomical Observatory, CAS CHEMISTRY, DYNAMICS AND STRUCTURE OF THE MILKY.

Unveiling the formation of the Galactic disks and Andromeda halo with WFMOS Masashi Chiba (Tohoku University, Sendai)

ECLIPSING BINARIES IN OPEN CLUSTERS John Southworth Dr Pierre Maxted Dr Barry Smalley Astrophysics Group Keele University.

Looking for the siblings of the Sun Borja Anguiano & RAVE collaboration.

Open Clusters and Galactic Disk Observations with LAMOST Li CHEN, Jinliang HOU Shanghai Astronomical Observatory, CAS KIAA/PKU-IoA Workshop.

The Galaxy as seen by RAVE L. Veltz, O. Bienaymé & A. Just.

The Milky Way Galaxy James Binney Oxford University.

Compilation of stellar fundamental parameters from literature : high quality observations + primary methods Calibration stars for astrophysical parametrization.

Proper-Motion Membership Determinations in Star Clusters Dana I. Dinescu (Yale U.)

Distances to PNe using angular expansion parallax Lizette Guzman-Ramirez (JBCA, University of Manchester) Yolanda Gomez and Laurent Loinard (CRyA, UNAM,

 a & Broadband photometry of open clusters Martin Netopil Institute of Astronomy, University of Vienna - Austria AIPW Dubrovnik.

Stars in Motion A Yale symposium in honor of Bill Van Altena September 2008 Stars in Motion A Yale symposium in honor of Bill Van Altena September 2008.

A survey of Probable Open Cluster Remnants in the Galactic disk S. Villanova & G. Carraro, Universita’ di Padova.

„We are not talking about cosmology...“ (A. Sozzetti)

The Milky Way Disk and the LAMOST survey Jinliang HOU Shanghai Astronomical Observatory, CAS Workshop on Galactic Studies with the LAMOST Survey KIAA-PKU,

1 Galactic Science and MOS on the WHT Amina Helmi.

A New Technique to Measure ΔY/ΔZ A. A. R. Valcarce (UFRN) Main collaborators: J. R. de Medeiros (UFRN)M. Catelan (PUC) XXXVII SAB meeting Águas de Lindóia,

Seattle University and APO Joanne Hughes Department of Physics.

{ SDSS Timothy C. Beers National Optical Astronomy Observatory The AEGIS Survey (and more …)

Ground based observations for Gaia 2001 : need to have reference stars to calibrate AP algorithms for Gaia i.e. stars with well-known APs that will observed.

8th Sino-German Workshop Kunming, Feb 23-28, 2009 Milky Way vs. M31: a Tale of Two Disks Jinliang HOU In collaboration with : Ruixiang CHANG, Shiyin SHEN,

NGC 2506 – a try for a spectroscopic study Ekaterina Atanasova Petr Kabath Christine Oppegaard Mª Carmen Sánchez Gil Tutor: Frédéric Royer 2nd NEON Archive.

Steve Boudreault ASTRO DEBATA Tuesday 24 th of February 2009 The formation of brown dwarfs as revealed by the mass function of IC 2391 Collaborators (MPIA)

Young active star research with SONG and mini-SONG Huijuan Wang National Astronomical Observatories Chinese Academy of Charleston.

Possible CO Follow-up of MaNGA Cheng Li (SHAO), Martin Bureau (Oxford)

A New Stellar Stream? The large red “eye” at l = 240 – 270 deg, b = 10 – 30 deg signals a point of interest. The gradient between the over- density and.

Gyöngyi Kerekes Eötvös Lóránd University, Budapest MAGPOP 2008, Paris István Csabai László Dobos Márton Trencséni.

Globular clusters in the galactic plane Václav Glos Star clusters.

A Dedicated Search for Transiting Extrasolar Planets using a Doppler Survey and Photometric Follow-up A Proposal for NASA's Research Opportunities in Space.

Dwarf Spheroidal Galaxies Orbiting the Milky Way Edward W Olszewski, Steward Obs.

Direct imaging of substellar objects around young and nearby stars: The SACY sample N. Huélamo (Laeff-INTA, Spain) H. Bouy (UC Berkeley) C. Torres (LNA,

1 Spectroscopic survey of LAMOST Yongheng Zhao (National Astronomical Observatories of China) On behalf of the LAMOST operation team.

The Giant Branches – Leiden 14/05/09 The Initial-Final Mass Relation Aldo Serenelli – MPA Salaris, Serenelli, Weiss & Miller Bertolami (2009)

Galactic structure and star counts Du cuihua BATC meeting, NAOC.

The Photometric Properties of NGC 6134 and Hogg 19 SDSS u’g’r’i’z’ Open Cluster Survey: Credit: Credit: SMARTS consortium.

Stellar population Studies with LAMOST - Chen Bing - Contents Contents Galactic structure & Evolution Galactic structure & Evolution Related Projects Related.

Cluster & Association Members Ernst Paunzen IfA, Vienna.

Metallicity and age of selected nearby G-K Giants L. Pasquini (ESO) M. Doellinger (ESO-LMU) J. Setiawan (MPIA) A. Hatzes (TLS), A. Weiss (MPA), O. von.

Galactic Archaeology: The Lowest Metallicity Stars Timothy C. Beers Department of Physics & Astronomy Michigan State University & JINA: Joint Institute.

The Gaia-ESO Survey Sofia Randich INAF-Arcetri Survey Co-PIs: Gerry Gilmore & Sofia Randich 350+ Co-Is (mostly from Europe, but not only) 90++ institutes.

Julie Hollek and Chris Lindner.  Background on HK II  Stellar Analysis in Reality  Methodology  Results  Future Work Overview.

1 Baryon Acoustic Oscillations Prospects of Measuring Dark Energy Equation of State with LAMOST Xuelei Chen ( 陳學雷 ) National Astronomical Observatory of.

Open Cluster Stars for RAVE Observations in the Galactic Plane Ralf Scholz 1, Nina Kharchenko 1,2, Anatoly Piskunov 1,3, Elena Schilbach 4 & Siegfried.

ASTR112 The Galaxy Lecture 4 Prof. John Hearnshaw 7. Globular clusters 8. Galactic rotation 8.1 From halo stars 8.2 From disk stars – Oort’s constant,

Open Clusters in All-Sky Catalogue ASCC- 2.5 N.V.Kharchenko 1, A.E.Piskunov 2, S.Röser 3, E.Schilbach 3, & R.-D.Scholz 4 1 Main Astronomical Observatory,

Pisa, 4 May 2009 Alessandro Spagna A new kinematic survey (from GSC-II and SDSS-DR7) to study the stellar populations of the Milky Way Alessandro Spagna.

Observational Windows on the Dynamics of Open Clusters Robert D. Mathieu University of Wisconsin - Madison.

Tidal Circularization in the Open Cluster NGC 6819 Sylvana Yelda Advisor: Robert Mathieu.

The nearby strongly reddened open cluster Stock2. A new study based on accurate proper motions and 2MASS photometry A. Spagna, F. Cossu, M.G. Lattanzi,

Young open cluster in the vicinity of COROT primary targets: the case of Collinder 96 and Dolidze 25 Vincenzo Ripepi INAF-Osservatorio Astronomico di Capodimonte,

BATC Multi-color Photometry of Open Cluster M48 Zhenyu Wu 8.11, 2005, Weifang.

SEGUE Target Selection on-going SEGUE observations.

Galactic Structure and Near-field Cosmology via Astrometry with ODI Dana Casetti, Terry Girard, Bill van Altena - Yale Orbits of MW: satellites satellites.

The open cluster IC4665 “Panoramic near-infrared Astronomy”, Edinburgh, 10 November 2005 Nicolas Lodieu.

CASE-FOMBS Follow-up of One Million Bright Stars

The Stellar Kinematics in Our Milky Way

Recent star formation history in NGC 346

Constraining the Local Gravitational Potential in the MW by the Motion of Stars Student Workshop.

Planetary Nebula abundances in NGC 5128 with FORS

Jiannan Zhang, Yihan Song, Ali Luo NAOC, CHINA

Presentation transcript:

Open Cluster Study in the LAMOST DR2 Jing Zhong （ Shanghai Astronomical Observatory ） Collaborators: Li Chen, Zhengyi Shao

Why study the Cluster DistanceAge Stellar Evolution

How to identify cluster members ?

Membership HR RV PM Field stars contamination Spectral observation Accurate proper motion

DR1DR2DR3 Cluster Spectra Global survey of star clusters in the Milky Way (Kharchenko+,2013) 3006 star clusters Advantage:  Large number of spectra in the cluster area  Coverage of the Galactic disk (Galactic Anti-Center )  Reliable stellar parameters: RV, FeH, Teff, Logg 716 star clusters

Disadvantage:  Uniform observation  Inadequate cluster members  Field stars contamination LAMOST NGC6791 SDSS

NGC2168 (M35) Galactic coordinate: [ , 2.26] Radius: 0.98 deg Distance: 938 pc Age: 180 Myr FeH: dex Kharchenko et al,2013 Bouy et al,2015 NGC2168 NGC ’

g < 15 radius=1.5 ° LAMOST Observation in NGC2168 LAMOST spectra ： 6926

Proper Motion Subtraction cross-match with UCAC4: |pmra| < 40, e_pmra < 15 |pmde|< 40, e_pmde < 15 μ pmRA μ pmDE σ pmRA σ pmDE Cluster0.74± ± ± ±0.14 Field-0.27± ± ± ±0.12

Balaguer-Nunez et al.1998 The frequency function for the i-th star of a cluster : ClusterField The membership probabilities of the i-th star belonging to the cluster :

Membership Distribution Balaguer-Nunez et al.1998

Radial velocity distribution Geller et al.2010 WIYN study in NGC2168: 3.5m telescope 1144 stars 5201 RV measurements Observed since 1997 Precision of 0.5 km s -1

The radial velocity and metallicity of member candidates in the LAMOST are useful to study the Open Cluster.

Summary NGC2168 LAMOSTWIYN Kharchenko Steinhauer+2004Barrado+2001 RV (km/s)-10.9± ±0.05 FeH-0.14± ± ±0.1 PMProbCluster members LAMOST RV / FeH isochrone Distance 、 Age 、 … Prob