Search Publications
The unusual ISM in blue and dusty gas-rich galaxies (BADGRS)
Ivison, R. J.; de Zotti, G.; Dunne, L. +12 more
The Herschel-ATLAS unbiased survey of cold dust in the local Universe is dominated by a surprising population of very blue (FUV-K < 3.5), dust-rich galaxies with high gas fractions (f_H I=M_{H I}/(M_{\ast }+M+_{H I})>0.5). Dubbed `Blue and Dusty Gas-Rich Sources' (BADGRS) they have cold diffuse dust temperatures, and the highest dust-to-stel…
The opposition effect in Saturn's main rings as seen by Cassini ISS: 4. Correlations of the surge morphology with surface albedos and VIMS spectral properties
Déau, Estelle; Dones, Luke; West, Robert A. +4 more
In this paper, we continue our analysis of the saturnian ring opposition effect seen by Cassini ISS. The ring opposition effect is a peak in the rings' reflectivity caused as the directions from a spot on the rings to the observer and to the light source, respectively, converge toward zero degrees. So far, the exact origin of the ring's opposition…
Detection of the thermal component in GRB 160107A
Yamaoka, Kazutaka; Yoshida, Atsumasa; Sakamoto, Takanori +14 more
We present the detection of a blackbody component in gamma-ray burst GRB 160107A emission by using the combined spectral data of the CALET Gamma-ray Burst Monitor (CGBM) and the MAXI Gas Slit Camera (GSC). MAXI/GSC detected the emission ∼45 s prior to the main burst episode observed by the CGBM. The MAXI/GSC and the CGBM spectrum of this prior emi…
The First Results of Processing Observations of SS Bodies from UBAI Photographic Plate Collection Using the New Technique
Andruk, V. M.; Pakuliak, L. K.; Yizhakevych, O. M. +2 more
The paper presents the first results of processing of photographic observations of SS bodies based on materials from the collection of plates of the Ulugh Beg Astronomical Institute of the Academy of Sciences of the Republic of Uzbekistan (UBAI). The glass archive of the UBAI has about 15 thousand photographic plates with images of various space o…
Erratum: Rapid Optical Variations Correlated with X-rays in the 2015 Second Outburst of V404 Cygni (GS 2023+338)
Nogami, Daisaku; Shidatsu, Megumi; Kato, Taichi +24 more
Sharpening up Galactic all-sky maps with complementary data. A machine learning approach
Enßlin, Torsten; Bomans, Dominik J.; Dettmar, Ralf-Jürgen +4 more
Context. Galactic all-sky maps at very disparate frequencies, such as in the radio and γ-ray regime, show similar morphological structures. This mutual information reflects the imprint of the various physical components of the interstellar medium.
Aims: We want to use multifrequency all-sky observations to test resolution improvement and rest…
Thermal analyses for initial operations of the soft x-ray spectrometer onboard the Hitomi satellite
Ezoe, Yuichiro; Ishikawa, Kumi; Ohashi, Takaya +11 more
The soft x-ray spectrometer (SXS) onboard the Hitomi satellite achieved a high-energy resolution of ∼4.9 eV at 6 keV with an x-ray microcalorimeter array cooled to 50 mK. The cooling system utilizes liquid helium, confined in zero gravity by means of a porous plug (PP) phase separator. For the PP to function, the helium temperature must be kept lo…
Discovery of two embedded massive YSOs and an outflow in IRAS 18144-1723
Davis, C. J.; Wouterloot, J. G. A.; Varricatt, W. P. +1 more
Massive stars are rarely seen to form in isolation. It has been proposed that association with companions or clusters in the formative stages is vital to their mass accumulation. In this paper, we study IRAS 18144-1723, a massive young stellar object (YSO) that had been perceived in early studies as a single source. In the CO(3-2) line, we detect …
Terrestrial Ring Current: A Review of Cluster Results Based on the Curlometer Technique
Dandouras, I.; Dunlop, M. W.; Rochel-Grimald, S. +1 more
An unusual transient in the extremely metal-poor Galaxy SDSS J094332.35+332657.6 (Leoncino Dwarf)
Sánchez Almeida, J.; Filho, Mercedes E.
We have serendipitously discovered that Leoncino Dwarf, an ultrafaint, low-metallicity record-holder dwarf galaxy, may have hosted a transient source, and possibly exhibited a change in morphology, a shift in the centre of brightness, and peak variability of the main (host) source in images taken approximately 40 yr apart; it is highly likely that…