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The ALMA view of MP Mus (PDS 66): A protoplanetary disk with no visible gaps down to 4 au scales
Duchêne, G.; Dent, W. R. F.; de Gregorio-Monsalvo, I. +12 more
Aims: We aim to characterize the protoplanetary disk around the nearby (d ~ 100 pc), young solar analog MP Mus (PDS 66) and to reveal any signs of planets or ongoing planet formation in the system.
Methods: We present new ALMA observations of MP Mus at 0.89 mm, 1.3 mm, and 2.2 mm with angular resolutions of ~1″, 0.05″, and 0.25″, respect…
Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy
Paragi, Zsolt; Frey, Sándor; Varenius, Eskil +10 more
Dwarf galaxies are characterized by a very low luminosity and low mass. Because of significant accretion and ejection activity of massive black holes, some dwarf galaxies also host low-luminosity active galactic nuclei (AGNs). In a few dwarf AGNs, very long baseline interferometry (VLBI) observations have found faint non-thermal radio emission. SD…
Identification and Characterization of a Large Sample of Distant Active Dwarf Galaxies in XMM-SERVS
Brandt, W. N.; Zou, Fan; Bauer, Franz E. +10 more
Active dwarf galaxies are important because they contribute to the evolution of dwarf galaxies and can reveal their hosted massive black holes. However, the sample size of such sources beyond the local universe is still highly limited. In this work, we search for active dwarf galaxies in the recently completed XMM-Spitzer Extragalactic Representat…
Kinematic differences between multiple populations in Galactic globular clusters
Pechetti, Renuka; Weilbacher, Peter M.; Krajnović, Davor +7 more
Aims: The formation process of multiple populations in globular clusters is still up for debate. These populations are characterized by different light-element abundances. Kinematic differences between the populations are particularly interesting in this respect because they allow us to distinguish between single-epoch formation scenarios and…
First light and reionization epoch simulations (FLARES) X III: the lyman-continuum emission of high-redshift galaxies
Wilkins, Stephen M.; Conselice, Christopher J.; Simmonds, Charlotte +10 more
The history of reionization is highly dependent on the ionizing properties of high-redshift galaxies. It is therefore important to have a solid understanding of how the ionizing properties of galaxies are linked to physical and observable quantities. In this paper, we use the First Light and Reionization Epoch Simulations (FLARES) to study the Lym…
Solar flare hard X-rays from the anchor points of an eruptive filament
Volpara, Anna; Massa, Paolo; Krucker, Säm +7 more
Context. We present an analysis of a GOES M1.8 flare with excellent observational coverage in UV, extreme-UV (EUV), and X-ray, including observations from the Interface Region Imaging Spectrograph (IRIS), from the Solar Dynamics Observatory (SDO) with the Atmospheric Imaging Assembly (AIA), from the Hinode/EUV Imaging Spectrometer (EIS), from the …
The Gaia-ESO Survey: Old super-metal-rich visitors from the inner Galaxy
Gilmore, G.; Guiglion, G.; Randich, S. +12 more
Context. The solar vicinity is currently populated by a mix of stars with various chemo-dynamic properties, including stars with a high metallicity compared to the Sun. Dynamical processes such as churning and blurring are expected to relocate such metal-rich stars from the inner Galaxy to the solar region.
Aims: We report the identification …
Comparing the host galaxy ages of X-ray selected AGN in COSMOS. Obscured AGN are associated with older galaxies
Georgantopoulos, I.; Lanzuisi, G.; Mountrichas, G. +3 more
We explore the properties of the host galaxies of X-ray selected AGN in the COSMOS field using the Chandra Legacy sample and the LEGA-C survey VLT optical spectra. Our main goal is to compare the relative ages of the host galaxies of the obscured and unobscured AGN by means of the calcium break Dn(4000) and the Hδ Balmer line…
A characterization of ASAS-SN core-collapse supernova environments with VLT+MUSE. I. Sample selection, analysis of local environments, and correlations with light curve properties
Lyman, J. D.; Galbany, L.; Gutiérrez, C. P. +17 more
Context. The analysis of core-collapse supernova (CCSN) environments can provide important information on the life cycle of massive stars and constrain the progenitor properties of these powerful explosions. The MUSE instrument at the Very Large Telescope (VLT) enables detailed local environment constraints of the progenitors of large samples of C…
Spitzer thermal phase curve of WASP-121 b
Morello, G.; Lagage, P. -O.; Tan, J. C. +2 more
Aims: We analyse unpublished Spitzer observations of the thermal phase-curve of WASP-121 b, a benchmark ultra-hot Jupiter.
Methods: We adopted the wavelet pixel-independent component analysis technique to remove challenging instrumental systematic effects in these datasets and we fit them simultaneously with parametric light-curve models…