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Gaia, an all sky astrometric and photometric survey
Carrasco, J. M.
Gaia space mission includes a low resolution spectroscopic instrument to classify and parametrize the observed sources. Gaia is a full-sky unbiased survey down to about 20th magnitude. The scanning law yields a rather uniform coverage of the sky over the full mission. The data reduction is a global one over the full mission. Both sky coverage and …
MIR Luminosity Function of Galaxies in the Nep-Wide Field
Kim, Seong Jin; Jeong, Woong-Seob; Lee, Hyung Mok +1 more
We present the mid-infrared (MIR) luminosity function (LF) of local (z < 0.3) star-forming (SF) galaxies in the North Ecliptic Pole (NEP) field. This work is based on the NEP-Wide point source catalogue and the spectroscopic redshift (z) data for ∼1700 galaxies obtained by the optical follow-up survey with MMT/Hectospec and WIYN/Hydra. The AKAR…
Perspectives of observing the color indices of optical afterglows of gamma-ray bursts with ESA Gaia
Hudec, René; Šimon, Vojtěch; Pizzichini, Graziella
We propose a strategy for detecting and analyzing optical afterglows (OAs) of long gamma-ray bursts (GRBs) without the need to obtain their light curves. This approach is useful for the Gaia satellite, which provides sampled optical ultra-low-dispersion spectroscopic observations of the sky. For this purpose, we show that most OAs of long GRBs dis…
Study of a large arched structure of interstellar H I in the southern Milky Way
Olano, C. A.
We have revisited the sky region delimited by 290° < l < 320° and 3° < b < 17°, which includes a large arc of neutral hydrogen (H I), and extended the study region using the Leiden-Argentine-Bonn H I survey. The H I arc is almost an open downward semi-circumference of ≈10° of radius, with the symmetry axis perpendicular to the Galactic…
Huygens and Titan's methane cycle
Maltagliati, Luca
Multi-transition study of the peculiar merger Arp 299
Zhu, Ming; Jiao, Qian
We present a multi-transition study to investigate the physical properties of dust and molecular gas in the archetypical merger Arp 299 by using data including James Clerk Maxwell Telescope (JCMT) 850 and 450 µm observations, Herschel 500, 350, 250, 160 and 70 µm continuum maps, as well as the CO(3-2), CO(4-3) low-J CO lines and CO(11-…
Comets: Exposing the icy interior of 67P
Delbo, Marco
Images from ESA's Rosetta mission show, in real time, the processes that sculpt the surface of a comet, which is revealed to have a pristine icy interior surrounded by an evolved surface.
Transient X-Ray Sources in the Magellanic-type Galaxy NGC 4449
Jithesh, V.; Wang, Zhongxiang
We report the identification of seven transient X-ray sources in the nearby Magellanic-type galaxy NGC 4449 using archival multi-epoch X-ray observations conducted with the Chandra, XMM-Newton, and Swift telescopes over the years 2001-2013. Among them, two sources are classified as supersoft X-ray sources (SSSs) because of their soft X-ray color; …
Initial Analysis of Extragalactic Fields Using a New Akari/irc Analysis Pipeline
Serjeant, Stephen; Davidge, Helen; Pearsonl, Chris
We present the first results of a new data analysis pipeline for processing extragalactic AKARI/IRC images. The main improvements of the pipeline over the standard analysis are the removal of Earth shine and image distortion correction. We present the differential number counts of the AKARI/IRC S11 filter IRAC validation field. The differential nu…
Panoramic Mid-Infrared Views of Distant Clusters of Galaxies with Akari
Koyama, Yusei