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December 19, 2018, 4:22 pm
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sunset: 4:37 pm
 

THESEUS

THESEUS

A new window on the early universe and the multi-messenger transient sky

LEGUS Project

Legacy Extragalactic UV Survey

NASA Press Release

INAF NEWS

Per maggiori Informazioni

SECCO 1: a very dark stellar system lost in Virgo

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Left panel: Hα images of the two bodies of SECCO 1 (projected separation ~6 kpc ) extracted from the MUSE data cube. Right panels: HST -ACS images of the same region. At the distance of the object 10 arcsec correspond to 825 pc.

Many models of structure formation within the Lambda-CDM cosmological paradigm predict the

…→ Read More: SECCO 1: a very dark stellar system lost in Virgo

Gaia16aye: the first binary microlensing event ever discovered towards the Galactic Plane

Image of Gaia16aye obtained at the 1.5m G.D. Cassini Telescope, Loiano.

On 2016-08-05 the 1.2 mag brightening of an otherwise quiet stellar source triggered the Gaia16aye Gaia Science Alert, nicknamed Ayers Rock (19:40:01.13 +30:07:53.4, J2000). The previous 22 Gaia detections of the source (starting from 2014-10-30) show no variability greater than 0.05m RMS. The initial spectrophotometric observations did not clarify the nature of the

…→ Read More: Gaia16aye: the first binary microlensing event ever discovered towards the Galactic Plane

Gaia Data Release 1

The Gaia spacecraft was launched on December 19th, 2013 to perform a 5-year long all-sky scanning survey that will provide exquisitely accurate astrometry (100 times better than Hipparcos) and photometry for about one billion of Galactic stars down to G ~20.7 (Gaia unfiltered band), and radial velocity for several millions of stars to

…→ Read More: Gaia Data Release 1