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GAIA

The 3D Milky Way Mapper

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And those who were seen dancing were thought to be insane by those who could not hear the music.

— Friedrich Nietzsche

Abstract

GAIA (originally the acronym for Global Astrometric Interferometer for Astrophysics) is a mission of the European Space Agency (ESA) which will make the largest, most precise three-dimensional map of our Galaxy by an unparalleled survey of one per cent of the Galaxy’s population of 100 billion stars with the precision of microarcseconds (µas). This article will briefly review Gaia, the data releases (DR) and the possible implications of this mission. The reader will be introduced to the DR1 and DR2 data releases and the scientific outcomes of DR1 as a forerunner to the DR2 (released on 25 April 2018) of this one-of-a-kind mission. This article aims to summarize this great milestone in astronomy.

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Authors and Affiliations

  1. Department of Physics, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500 032, India

    Priya Hasan

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  1. Priya Hasan
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Correspondence to Priya Hasan.

Additional information

Priya Hasan is an Assistant Professor in Physics at the Maulana Azad National Urdu University, Hyderabad. Her research interests are observational astronomy, star formation, star clusters and galaxies. She is actively involved in Olympiads and public outreach and astronomy education programs. She is a member of the Astronomical Society of India — Public Outreach & Education Committee (since 2016).

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Hasan, P. GAIA. Reson 24, 433–444 (2019). https://doi.org/10.1007/s12045-019-0796-2

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  • DOI: https://doi.org/10.1007/s12045-019-0796-2

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