A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate
Adaptive Optics

J 2011

A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics

ORTOLANI, Sergio, Beatriz BARBUY, Yazan MOMANY, Ivo SAVIANE, Eduardo BICA et. al.

Basic information

Original name

A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics

Authors

ORTOLANI, Sergio (380 Italy, guarantor), Beatriz BARBUY (76 Brazil), Yazan MOMANY (380 Italy), Ivo SAVIANE (380 Italy), Eduardo BICA (76 Brazil), Lucie JÍLKOVÁ (203 Czech Republic, belonging to the institution), Gustavo Malta SALERNO (380 Italy) and Bruno JUNGWIERT (203 Czech Republic, belonging to the institution)

Edition

Astrophysical Journal, Chicago, University of Chicago Press, 2011, 0004-637X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 6.024

RIV identification code

RIV/00216224:14310/11:00050524

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1088/0004-637X/737/1/31

UT WoS

000293332200031

Keywords in English

Galactic bulge globular clusters (HP 1)

Abstract

V originále

The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, combined with first epoch New Technology Telescope data, enabled us to derive accurate proper motions. The cluster and bulge fields' stellar contents were disentangled through this process and produced an unprecedented definition in color-magnitude diagrams of this cluster. The metallicity of [Fe/H] -1.0 from previous spectroscopic analysis is confirmed, which together with an extended blue horizontal branch imply an age older than the halo average. Orbit reconstruction results suggest that HP 1 is spatially confined within the bulge.

Links

GD205/08/H005, research and development project

Name: Fyzika Slunce, hvězd a hvězdných soustav

Investor: Czech Science Foundation, Physics of Sun, stars, and stellar systems

Citovat

ORTOLANI, Sergio, Beatriz BARBUY, Yazan MOMANY, Ivo SAVIANE, Eduardo BICA, Lucie JÍLKOVÁ, Gustavo Malta SALERNO and Bruno JUNGWIERT. A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics. Astrophysical Journal. Chicago: University of Chicago Press, 2011, vol. 737, No 1, p. 310-341, 31 pp. ISSN 0004-637X. Available from: https://dx.doi.org/10.1088/0004-637X/737/1/31.

@article{972657,
   author = {Ortolani, Sergio and Barbuy, Beatriz and Momany, Yazan and Saviane, Ivo and Bica, Eduardo and Jílková, Lucie and Salerno, Gustavo Malta and Jungwiert, Bruno},
   article_location = {Chicago},
   article_number = {1},
   doi = {http://dx.doi.org/10.1088/0004-637X/737/1/31},
   keywords = {Galactic bulge globular clusters (HP 1)},
   language = {eng},
   issn = {0004-637X},
   journal = {Astrophysical Journal},
   title = {A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics},
   url = {http://iopscience.iop.org/0004-637X/737/1/31/},
   volume = {737},
   year = {2011}
}

TY  - JOUR
ID  - 972657
AU  - Ortolani, Sergio - Barbuy, Beatriz - Momany, Yazan - Saviane, Ivo - Bica, Eduardo - Jílková, Lucie - Salerno, Gustavo Malta - Jungwiert, Bruno
PY  - 2011
TI  - A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics
JF  - Astrophysical Journal
VL  - 737
IS  - 1
SP  - 310-341
EP  - 310-341
PB  - University of Chicago Press
SN  - 0004637X
KW  - Galactic bulge globular clusters (HP 1)
UR  - http://iopscience.iop.org/0004-637X/737/1/31/
N2  - The globular cluster HP 1 is projected on the bulge, very close to the Galactic center. The Multi-Conjugate Adaptive Optics Demonstrator on the Very Large Telescope allowed us to acquire high-resolution deep images that, combined with first epoch New Technology Telescope data, enabled us to derive accurate proper motions. The cluster and bulge fields' stellar contents were disentangled through this process and produced an unprecedented definition in color-magnitude diagrams of this cluster. The metallicity of [Fe/H] -1.0 from previous spectroscopic analysis is confirmed, which together with an extended blue horizontal branch imply an age older than the halo average. Orbit reconstruction results suggest that HP 1 is spatially confined within the bulge.
ER  -

ORTOLANI, Sergio, Beatriz BARBUY, Yazan MOMANY, Ivo SAVIANE, Eduardo BICA, Lucie JÍLKOVÁ, Gustavo Malta SALERNO and Bruno JUNGWIERT. A Fossil Bulge Globular Cluster revealed by VLT Multi-Conjugate Adaptive Optics. \textit{Astrophysical Journal}. Chicago: University of Chicago Press, 2011, vol.~737, No~1, p.~310-341, 31 pp. ISSN~0004-637X. Available from: https://dx.doi.org/10.1088/0004-637X/737/1/31.

Detailed Information on Publication Record