VISIONS: the VISTA Star Formation Atlas I. Survey overview

被引：4

作者：

Meingast, Stefan ^{[1
]}

Alves, Joao ^{[1
]}

Bouy, Herve ^{[2
]}

Petr-Gotzens, Monika G. ^{[3
]}

Fuernkranz, Verena ^{[4
]}

Grossschedl, Josefa E. ^{[1
]}

Hernandez, David ^{[1
]}

Rottensteiner, Alena ^{[1
]}

Arnaboldi, Magda ^{[3
]}

Ascenso, Joana ^{[5
,6
]}

Bayo, Amelia ^{[3
,7
]}

Braendli, Erik ^{[1
]}

Brown, Anthony G. A. ^{[8
]}

Forbrich, Jan ^{[9
]}

Goodman, Alyssa ^{[10
]}

Hacar, Alvaro ^{[1
]}

Hasenberger, Birgit ^{[1
]}

Kohler, Rainer ^{[11
]}

Kubiak, Karolina ^{[6
]}

Kuhn, Michael ^{[9
]}

Lada, Charles ^{[10
]}

Leschinski, Kieran ^{[1
]}

Lombardi, Marco ^{[12
]}

Mardones, Diego ^{[13
]}

Mascetti, Laura ^{[3
,14
]}

Miret-Roig, Nuria ^{[1
]}

Moitinho, Andre ^{[6
]}

Muzic, Koraljka ^{[5
,6
]}

Piecka, Martin ^{[1
]}

Posch, Laura ^{[1
]}

Prusti, Timo ^{[15
]}

Pena Ramirez, Karla ^{[16
]}

Ramlau, Ronny ^{[17
,18
]}

Ratzenboeck, Sebastian ^{[1
,19
]}

Sacco, Germano ^{[20
]}

Swiggum, Cameren ^{[1
]}

Teixeira, Paula Stella ^{[21
]}

Urban, Vanessa ^{[1
]}

Zari, Eleonora ^{[4
]}

Zucker, Catherine ^{[22
]}

机构：

[1] Univ Wien, Inst Astrophys, Turkenschanzstr 17, A-1180 Vienna, Austria

[2] Univ Bordeaux, Lab Astrophys Bordeaux, CNRS, B18N,Allee Geoffroy St Hillaire, F-33615 Pessac, France

[3] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[4] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[5] Univ Porto, Fac Engn, Rua Dr Roberto Frias, P-4200465 Porto, Portugal

[6] Univ Lisbon, Fac Ciencias, CENTRA, Ed C8, P-1749016 Lisbon, Portugal

[7] Univ Valparaiso, Inst Fis & Astron, Gran Bretana 1111, Valparaiso, Chile

[8] Leiden Univ, Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands

[9] Univ Hertfordshire, Ctr Astrophys Res, Coll Lane, Hatfield AL10 9AB, Herts, England

[10] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[11] Georgia State Univ, Mt Wilson Observ, CHARA Array, Mt Wilson, CA 91023 USA

[12] Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy

[13] Univ Chile, Dept Astron, Santiago, Chile

[14] Terma GmbH, Bratustr 7, D-64293 Darmstadt, Germany

[15] European Space Agcy ESA, European Space Res & Technol Ctr ESTEC, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands

[16] Univ Antofagasta, Ctr Astron CITEVA, Ave Angamos 601, Antofagasta, Chile

[17] Johannes Kepler Univ Linz, Ind Math Inst, Altenbergerstr 69, A-4040 Linz, Austria

[18] Austrian Acad Sci AAS, Johann Radon Inst Computat & Appl Math RICAM, Altenbergerstr 69, A-4040 Linz, Austria

[19] Univ Vienna, Res Network Data Sci Uni Vienna, Vienna, Austria

[20] INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

[21] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

[22] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2023年 / 673卷

基金：

欧洲研究理事会;

关键词：

surveys; stars: pre-main sequence; stars: formation; stars: kinematics and dynamics; ISM: clouds; VIENNA SURVEY; DUST; 3D; DATABASE; ASTROPY; OBJECTS; APOGEE; MODEL; ORION; GAIA;

D O I：

10.1051/0004-6361/202245771

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

VISIONS is an ESO public survey of five nearby (d < 500 pc) star-forming molecular cloud complexes that are canonically associated with the constellations of Chamaeleon, Corona Australis, Lupus, Ophiuchus, and Orion. The survey was carried out with the Visible and Infrared Survey Telescope for Astronomy (VISTA), using the VISTA Infrared Camera (VIRCAM), and collected data in the near-infrared passbands J (1.25 mu m), H (1.65 mu m), and K-S (2.15 mu m). With a total on-sky exposure time of 49.4 h VISIONS covers an area of 650 deg(2), it is designed to build an infrared legacy archive with a structure and content similar to the Two Micron All Sky Survey (2MASS) for the screened star-forming regions. Taking place between April 2017 and March 2022, the observations yielded approximately 1.15 million images, which comprise 19 TB of raw data. The observations undertaken within the survey are grouped into three different subsurveys. First, the wide subsurvey comprises shallow, large-scale observations and it has revisited the star-forming complexes six times over the course of its execution. Second, the deep subsurvey of dedicated high-sensitivity observations has collected data on areas with the largest amounts of dust extinction. Third, the control subsurvey includes observations of areas of low-to-negligible dust extinction. Using this strategy, the VISIONS observation program offers multi-epoch position measurements, with the ability to access deeply embedded objects, and it provides a baseline for statistical comparisons and sample completeness - all at the same time. In particular, VISIONS is designed to measure the proper motions of point sources, with a precision of 1 mas yr(-1) or better, when complemented with data from the VISTA Hemisphere Survey (VHS). In this way, VISIONS can provide proper motions of complete ensembles of embedded and low-mass objects, including sources inaccessible to the optical ESA Gaia mission. VISIONS will enable the community to address a variety of research topics from a more informed perspective, including the 3D distribution and motion of embedded stars and the nearby interstellar medium, the identification and characterization of young stellar objects, the formation and evolution of embedded stellar clusters and their initial mass function, as well as the characteristics of interstellar dust and the reddening law.

引用

页数：14

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