Search Publications
The gas mass reservoir of quiescent galaxies at cosmic noon
Magnelli, B.; Daddi, E.; Elbaz, D. +14 more
We present a 1.1 mm stacking analysis of moderately massive (log(M*/M⊙) = 10.7 ± 0.2) quiescent galaxies (QGs) at ⟨z⟩∼1.5, searching for cold dust continuum emission, which serves as an excellent tracer of dust and gas mass. Using both the recent GOODS-ALMA survey, as well as the full suite of ALMA Band-6 ancillary data in th…
Soft gamma-ray spectral and time evolution of the GRB 221009A: Prompt and afterglow emission with INTEGRAL/IBIS-PICsIT
Ubertini, Pietro; Rodi, James
Aims: The gamma-ray burst (GRB) 221009A, with its extreme brightness, has provided the opportunity to explore GRB prompt and afterglow emission behavior on short timescales with high statistics. In conjunction with detection up to very-high-energy gamma rays, studies of this event shed light on the emission processes at work in the initial ph…
Signatures of dynamic fibrils at the coronal base: Observations from Solar Orbiter/EUI
Teriaca, Luca; Solanki, Sami K.; Liu, Wei +20 more
The solar chromosphere hosts a wide variety of transients, including dynamic fibrils (DFs) that are characterised as elongated, jet-like features seen in active regions, often through Hα diagnostics. So far, these features have been difficult to identify in coronal images, primarily due to their small size and the lower spatial resolution of the c…
Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS. I. Asteroseismic distances to 12 500 red-giant stars
Khan, S.; Cantat-Gaudin, T.; Clementini, G. +10 more
Gaia EDR3 has provided unprecedented data that has generated a great deal of interest in the astrophysical community, even though systematics affect the reported parallaxes at the level of ∼10 µas. Independent distance measurements are available from asteroseismology of red-giant stars with measurable parallaxes, whose magnitude and colour r…
The hunt for formamide in interstellar ices. A toolkit of laboratory infrared spectra in astronomically relevant ice mixtures and comparisons to ISO, Spitzer, and JWST observations
van Dishoeck, E. F.; Rocha, W. R. M.; Slavicinska, K. +3 more
Context. Although solid-state pathways are expected to dominate the formation mechanisms of many complex organic molecules (COMs), very few COMs have been securely identified in interstellar ices, in stark contrast with the many COM detections in the gas phase. The launch of the James Webb Space Telescope (JWST) and its increase in sensitivity and…
Astronomical CH3+ rovibrational assignments. A combined theoretical and experimental study validating observational findings in the d203-506 UV-irradiated protoplanetary disk
Martin-Drumel, Marie-Aline; Van De Putte, Dries; Habart, Emilie +25 more
Context. The methyl cation (CH3+) has recently been discovered in the interstellar medium through the detection of 7 µm (1400 cm−1) features toward the d203-506 protoplanetary disk by the JWST. Line-by-line spectroscopic assignments of these features, however, were unsuccessful due to complex intramolecular p…
Taking a break: Paused accretion in the symbiotic binary RT Cru
Nuñez, N. E.; Mukai, K.; Sokoloski, J. L. +10 more
Symbiotic binaries sometimes hide their symbiotic nature for significant periods of time. There is mounting observational evidence that, in symbiotics that are powered solely by the accretion of the red giant's wind material onto a white dwarf, without any quasi-steady shell burning on the surface of the white dwarf, the characteristic emission li…
Persistent and occasional: Searching for the variable population of the ZTF/4MOST sky using ZTF Data Release 11
Bayo, A.; Bauer, F. E.; Arévalo, P. +13 more
Aims: We present a variability-, color-, and morphology-based classifier designed to identify multiple classes of transients and persistently variable and non-variable sources from the Zwicky Transient Facility (ZTF) Data Release 11 (DR11) light curves of extended and point sources. The main motivation to develop this model was to identify ac…
The dusty circumstellar environment of Betelgeuse during the Great Dimming as seen by VLTI/MATISSE
Danchi, W.; Matter, A.; Lopez, B. +23 more
Context. The `Great Dimming' of the prototypical red supergiant Betelgeuse, which occurred between December 2019 and April 2020, gives us unprecedented insight into the processes occurring on the stellar surface and in the inner wind of this type of star. In particular it may bring further understanding of their dust nucleation and mass-loss proce…
Gaia-IGRINS synergy: Orbits of newly identified Milky Way star clusters
Beers, Timothy C.; Placco, Vinicius M.; Minniti, Dante +11 more
Context. The recent and exquisite astrometric, photometric, and radial velocity measurements of the Gaia mission resulted in a substantial advancement of the determination of the orbits for old star clusters, including the oldest Milky Way globular clusters (MW GCs).
Aims: The main goal of the present paper is to use the new Gaia data release…