Search Publications
Tomography of the Solar Corona with the Metis Coronagraph II: Three-Dimensional Reconstructions of the Electron Density and Comparison with Reconstructions Based on LASCO-C2
Susino, Roberto; Romoli, Marco; De Leo, Yara +13 more
We carried out tomographic reconstructions of the three-dimensional distribution of the electron density of the solar corona based on white light polarized brightness (pB) images taken by the Metis coronagraph on board the Solar Orbiter (SolO) mission. We selected three different time intervals during 2022, and further implemented independent sync…
The XMM-Newton Line Emission Analysis Program (X-LEAP). II. The Multiscale Temperature Structures in the Milky Way Hot Gas
Bregman, Joel N.; Liu, Jifeng; Qu, Zhijie +1 more
This paper presents the multiscale temperature structures in the Milky Way (MW) hot gas, as part of the XMM-Newton Line Emission Analysis Program, surveying the O VII, O VIII, and Fe-L band emission features in the XMM-Newton archive. In particular, we define two temperature tracers, I OVIII/I OVII (O87) and I FeL/…
Associating LOFAR Galactic Faraday structures with the warm neutral medium
Boulanger, F.; Jenkins, E. B.; Bracco, A. +4 more
Faraday tomography observations with the Low Frequency Array (LOFAR) have unveiled a remarkable network of structures in polarized synchrotron emission at high Galactic latitudes. The observed correlation between LOFAR structures, dust polarization, and HI emission suggests a connection to the neutral interstellar medium (ISM). We investigated thi…
AuriDESI: mock catalogues for the DESI Milky Way Survey
Miquel, Ramon; Sanchez, Eusebio; Grand, Robert J. J. +31 more
The Dark Energy Spectroscopic Instrument Milky Way Survey (DESI MWS) will explore the assembly history of the Milky Way by characterizing remnants of ancient dwarf galaxy accretion events and improving constraints on the distribution of dark matter in the outer halo. We present mock catalogues that reproduce the selection criteria of MWS and the f…
ViCTORIA project: The LOFAR-MeerKAT view of active galactic nuclei in Virgo cluster early-type galaxies
Boselli, A.; Fossati, M.; Röttgering, H. J. A. +8 more
Context. The evolution of active galactic nuclei (AGNs) is closely connected to their host galaxies and surroundings. Via feedback processes, AGNs can counteract the cooling of the intracluster medium (ICM) and suppress star formation in their host galaxies. Radio observations at low frequencies provide a glimpse into the history of AGN activity. …
Modeling Ionized Gas in the Small Magellanic Cloud: The Wolf–Rayet Nebula N76
Sandstrom, Karin M.; Bolatto, Alberto D.; Indebetouw, Rémy +5 more
We present Cloudy modeling of infrared emission lines in the Wolf–Rayet (WR) nebula N76 caused by one of the most luminous and hottest WR stars in the low metallicity Small Magellanic Cloud. We use spatially resolved mid-infrared Spitzer/InfRared Spectrograph and far-infrared Herschel/PACS spectroscopy to establish the physical conditions of the i…
High speed stars. III. Detailed abundances and binary nature of the extreme speed star GHS143
Bonifacio, P.; Caffau, E.; Spite, M. +8 more
Context. The Gaia satellite has provided the community with three releases containing astrometrical and photometric data as well as by products, such as stellar parameters and variability indicators.
Aims: By selecting in the Gaia database, one can select stars with the requested characteristics, such as high speed. At present any selection i…
SOFIA/FORCAST Galactic Center Source Catalog
Morris, Mark R.; Longmore, Steven N.; Mills, Elisabeth A. C. +12 more
The central regions of the Milky Way constitute a unique laboratory for a wide swath of astrophysical studies; consequently, the inner ∼400 pc have been the target of numerous large surveys at all accessible wavelengths. In this paper, we present a catalog of sources at 25 and 37 µm located within all of the regions observed with the SOFIA/F…
3D structure of the Milky Way out to 10 kpc from the Sun: Catalogue of large molecular clouds in the Galactic Plane
Henning, Thomas; Beuther, Henrik; Miville-Deschênes, Marc-Antoine +4 more
Understanding the 3D structure of the Milky Way is a crucial step in deriving properties of the star-forming regions, as well as the Galaxy as a whole. We present a novel 3D map of the Milky Way plane that extends to 10 kpc distance from the Sun. We leverage the wealth of information in the near-infrared dataset of the Sloan Digital Sky Survey's A…
Cluster Formation in a Filamentary Cloud: The Case of the Stellar Cluster NGC 2316
Sharma, Saurabh; Panwar, Neelam; Verma, Aayushi +7 more
We present a multiwavelength analysis of the star cluster NGC 2316 and its surroundings. We estimated the physical parameters of the NGC 2316 cluster, including its shape (elongated), size (R cluster = 0.4 pc), distance (1.3 ± 0.3 kpc), and minimum reddening (A V = 1.55 mag). We discovered two massive stars (B2.0V-B1.5V, ag…