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The M 4 Core Project with HST: I. Overview and first epoch

Bedin, L R; Anderson, J; Heggie, D C; Piotto, G; Milone, Antonino; Giersz, M; Nascimbeni, V; Bellini, A; Rich, R M; van den Berg, M; Pooley, D; Brogaard, Karsten; Ortolani, Sergio; Malavolta, L; Ubeda, L; Marino, Anna

Description

We present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M 4, the nearest Galactic globular cluster, and the observations are designed to constrain the number of binaries with massive companions (black holes, neutron stars, or white dwarfs) by measuring the "wobble" of the luminous (mainsequence) companion around the center of mass of the pair, with an astrometric precision of ∼50 μas. The high spatial resolution and stable...[Show more]

dc.contributor.authorBedin, L R
dc.contributor.authorAnderson, J
dc.contributor.authorHeggie, D C
dc.contributor.authorPiotto, G
dc.contributor.authorMilone, Antonino
dc.contributor.authorGiersz, M
dc.contributor.authorNascimbeni, V
dc.contributor.authorBellini, A
dc.contributor.authorRich, R M
dc.contributor.authorvan den Berg, M
dc.contributor.authorPooley, D
dc.contributor.authorBrogaard, Karsten
dc.contributor.authorOrtolani, Sergio
dc.contributor.authorMalavolta, L
dc.contributor.authorUbeda, L
dc.contributor.authorMarino, Anna
dc.date.accessioned2015-12-10T23:05:48Z
dc.identifier.issn0004-6337
dc.identifier.urihttp://hdl.handle.net/1885/62509
dc.description.abstractWe present an overview of the ongoing Hubble Space Telescope large program GO-12911. The program is focused on the core of M 4, the nearest Galactic globular cluster, and the observations are designed to constrain the number of binaries with massive companions (black holes, neutron stars, or white dwarfs) by measuring the "wobble" of the luminous (mainsequence) companion around the center of mass of the pair, with an astrometric precision of ∼50 μas. The high spatial resolution and stable medium-band PSFs of WFC3/UVIS will make these measurements possible. In this work we describe (i) the motivation behind this study, (ii) our observing strategy, (iii) the many other investigations enabled by this unique data set, and which of those our team is conducting, and (iv) a preliminary reduction of the first-epoch dataset collected on 2012 October 10.
dc.publisherWiley-VCH Verlag GMBH
dc.sourceAstronomische Nachrichten
dc.titleThe M 4 Core Project with HST: I. Overview and first epoch
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume334
dc.date.issued2013
local.identifier.absfor020104 - Galactic Astronomy
local.identifier.ariespublicationU3488905xPUB706
local.type.statusPublished Version
local.contributor.affiliationBedin, L R, INAF-Osservatorio Astronomico di Padova
local.contributor.affiliationAnderson, J, STScI
local.contributor.affiliationHeggie, D C, University of Edinburgh
local.contributor.affiliationPiotto, G, Università di Padova
local.contributor.affiliationMilone, Antonino, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationGiersz, M, Polish Academy of Sciences
local.contributor.affiliationNascimbeni, V, Universita di Padova
local.contributor.affiliationBellini, A, Space Telescope Science Institute
local.contributor.affiliationRich, R M, University of California
local.contributor.affiliationvan den Berg, M, University of Amsterdam
local.contributor.affiliationPooley, D, Sam Houston State University
local.contributor.affiliationBrogaard, Karsten, University of Victoria
local.contributor.affiliationOrtolani, Sergio, Universita di Padova
local.contributor.affiliationMalavolta, L, Universita di Padova
local.contributor.affiliationUbeda, L, Space Telescope Science Institute
local.contributor.affiliationMarino, Anna, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue10
local.bibliographicCitation.startpage1062
local.bibliographicCitation.lastpage1085
local.identifier.doi10.1002/asna.201311911
dc.date.updated2015-12-10T08:49:00Z
local.identifier.scopusID2-s2.0-84896972154
local.identifier.thomsonID000330243400001
CollectionsANU Research Publications

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