Search Publications
Probing protoplanetary disk evolution in the Chamaeleon II region
Pinte, C.; Ménard, F.; Dent, W. R. F. +13 more
Context. Characterizing the evolution of protoplanetary disks is necessary to improve our understanding of planet formation. Constraints on both dust and gas are needed to determine the dominant disk dissipation mechanisms.
Aims: We aim to compare the disk dust masses in the Chamaeleon II (Cha II) star-forming region with other regions with a…
Unveiling the nature of 11 dusty star-forming galaxies at the peak of cosmic star formation history
Cimatti, A.; Pozzi, F.; Danese, L. +9 more
We present a panchromatic study of 11 (sub-)millimetre selected DSFGs with spectroscopically confirmed redshift (1.5 < zspec < 3) in the GOODS-S field, with the aim of constraining their astrophysical properties (e.g. age, stellar mass, dust, and gas content) and characterizing their role in the context of galaxy evolution. The mu…
WISDOM project - VI. Exploring the relation between supermassive black hole mass and galaxy rotation with molecular gas
Sarzi, Marc; Cappellari, Michele; Davis, Timothy A. +6 more
Empirical correlations between the masses of supermassive black holes (SMBHs) and properties of their host galaxies are well established. Among these is the correlation with the flat rotation velocity of each galaxy measured either at a large radius in its rotation curve or via a spatially integrated emission-line width. We propose here the use of…
Comparison of Observed Galaxy Properties with Semianalytic Model Predictions Using Machine Learning
Mobasher, Bahram; Chartab, Nima; Lu, Yu +1 more
With current and upcoming experiments such as the Wide Field Infrared Survey Telescope, Euclid, and Large Synoptic Survey Telescope, we can observe up to billions of galaxies. While such surveys cannot obtain spectra for all observed galaxies, they produce galaxy magnitudes in color filters. This data set behaves like a high-dimensional nonlinear …
Radial evolution of the April 2020 stealth coronal mass ejection between 0.8 and 1 AU. Comparison of Forbush decreases at Solar Orbiter and near the Earth
Dumbović, Mateja; Möstl, Christian; Davies, Emma E. +40 more
Aims: We present observations of the first coronal mass ejection (CME) observed by the Solar Orbiter spacecraft on April 19, 2020 and the associated Forbush decrease (FD) measured by the High Energy Telescope (HET). This CME is a multi-spacecraft event that was also seen near Earth the following day.
Methods: We highlight the capabilitie…
Investigating Remote-sensing Techniques to Reveal Stealth Coronal Mass Ejections
Nitta, Nariaki V.; Richardson, Ian G.; Srivastava, Nandita +7 more
Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in which a CME that is well observed in coronagraph data is missing a clear low-coronal counterpart. These events have received attention during recent years, mainly as a …
Broad-band X-ray observations of the 2018 outburst of the changing-look active galactic nucleus NGC 1566
Ricci, Claudio; Naik, Sachindra; Jana, Arghajit +5 more
We study the nature of the changing-look active galactic nucleus NGC 1566 during its 2018 June outburst. During the outburst, the X-ray intensity of the source rises up to ~25-30 times compared to its quiescent state intensity. We perform timing and spectral analysis of the source during pre-outburst, outburst, and post-outburst epochs using semis…
The KMOS galaxy evolution survey (KGES): the angular momentum of star-forming galaxies over the last ≈10 Gyr
Smail, I.; Swinbank, A. M.; Obreschkow, D. +8 more
We present the KMOS Galaxy Evolution Survey (KGES), a K-band Multi-Object Spectrograph (KMOS) study of the H α and [N II] emission from 288 K-band-selected galaxies at 1.2 ≲ z ≲ 1.8, with stellar masses in the range $\log _{10}(M_{*}/\rm {M}_{\odot })\approx 9$ - 11.5. In this paper, we describe the survey design, present the sample, and discuss t…
Giant Radio Quasars: Sample and Basic Properties
Jamrozy, Marek; Kuźmicz, Agnieszka
We present the largest sample of giant radio quasars (GRQs), which are defined as having a projected linear size greater than 0.7 Mpc. The sample consists of 272 GRQs, of which 174 are new objects discovered through cross-matching the NRAO Very Large Array Sky Survey and the Sloan Digital Sky Survey 14th Data Release Quasar Catalog (DR14Q) and con…
Emergence of Internetwork Magnetic Fields through the Solar Atmosphere
Gošić, M.; De Pontieu, B.; Bellot Rubio, L. R. +2 more
Internetwork (IN) magnetic fields are highly dynamic, short-lived magnetic structures that populate the interior of supergranular cells. Since they emerge all over the Sun, these small-scale fields bring a substantial amount of flux, and therefore energy, to the solar surface. Because of this, IN fields are crucial for understanding the quiet Sun …