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The miniJPAS survey: A preview of the Universe in 56 colors
Finoguenov, A.; Cepa, J.; Diego, J. M. +168 more
The Javalambre-Physics of the Accelerating Universe Astrophysical Survey (J-PAS) will scan thousands of square degrees of the northern sky with a unique set of 56 filters using the dedicated 2.55 m Javalambre Survey Telescope (JST) at the Javalambre Astrophysical Observatory. Prior to the installation of the main camera (4.2 deg2 field-…
The 60 pc Environment of FRB 20180916B
Kaspi, Victoria M.; Tendulkar, Shriharsh P.; Gil de Paz, Armando +18 more
Fast radio burst FRB 20180916B in its host galaxy SDSS J015800.28+654253.0 at 149 Mpc is by far the closest-known FRB with a robust host galaxy association. The source also exhibits a 16.35 day period in its bursting. Here we present optical and infrared imaging as well as integral field spectroscopy observations of FRB 20180916B with the WFC3 cam…
Novel constraints on the particle nature of dark matter from stellar streams
Bovy, Jo; Erkal, Denis; Bertone, Gianfranco +2 more
Tidal streams are highly sensitive to perturbations from passing dark matter (DM) subhalos and thus provide a means of measuring their abundance. In a recent paper, we analyzed the distribution of stars along the GD-1 stream with a combination of data from the Gaia satellite and the Pan-STARRS survey, and we demonstrated that the population of DM …
The Galaxy Activity, Torus, and Outflow Survey (GATOS). I. ALMA images of dusty molecular tori in Seyfert galaxies
Rouan, D.; Rigopoulou, D.; Hunt, L. K. +32 more
We present the first results of the Galaxy Activity, Torus, and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connection to the host galaxy in nearby Seyfert galaxies. Our project expands the range of active galactic nuclei (AGN) luminosities and Eddington ratios covered by previous s…
Direct Detection of Hawking Radiation from Asteroid-Mass Primordial Black Holes
Profumo, Stefano; Coogan, Adam; Morrison, Logan
Light, asteroid-mass primordial black holes, with lifetimes in the range between hundreds to several millions times the age of the Universe, are well-motivated candidates for the cosmological dark matter. Using archival COMPTEL data, we improve over current constraints on the allowed parameter space of primordial black holes as dark matter by stud…
New constraints on the 12CO(2-1)/(1-0) line ratio across nearby disc galaxies
Schinnerer, E.; Leroy, A. K.; Bigiel, F. +18 more
Both the CO(2-1) and CO(1-0) lines are used to trace the mass of molecular gas in galaxies. Translating the molecular gas mass estimates between studies using different lines requires a good understanding of the behaviour of the CO(2-1)-to-CO(1-0) ratio, R21. We compare new, high-quality CO(1-0) data from the IRAM 30-m EMIR MultiLine Pr…
A diffuse core in Saturn revealed by ring seismology
Fuller, Jim; Mankovich, Christopher R.
The best constraints on the internal structures of giant planets have historically originated from measurements of their gravity fields1-3. These data are inherently mostly sensitive to a planet's outer regions, stymieing efforts to measure the mass and compactness of the cores of Jupiter2,4,5 and Saturn6,7. Howeve…
The infrared-radio correlation of star-forming galaxies is strongly M⋆-dependent but nearly redshift-invariant since z ∼ 4
Prandoni, I.; Daddi, E.; Elbaz, D. +25 more
Over the past decade, several works have used the ratio between total (rest 8−1000 µm) infrared and radio (rest 1.4 GHz) luminosity in star-forming galaxies (qIR), often referred to as the infrared-radio correlation (IRRC), to calibrate the radio emission as a star formation rate (SFR) indicator. Previous studies constrained the e…
The 10 parsec sample in the Gaia era
Caballero, J. A.; Sozzetti, A.; Reylé, C. +3 more
Context. The nearest stars provide a fundamental constraint for our understanding of stellar physics and the Galaxy. The nearby sample serves as an anchor where all objects can be seen and understood with precise data. This work is triggered by the most recent data release of the astrometric space mission Gaia and uses its unprecedented high preci…
Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley
Bouchy, F.; Fridlund, M.; Zapatero Osorio, M. R. +69 more
We report on precise Doppler measurements of L231-32 (TOI-270), a nearby M dwarf (d = 22 pc, M⋆ = 0.39 M⊙, R⋆ = 0.38 R⊙), which hosts three transiting planets that were recently discovered using data from the Transiting Exoplanet Survey Satellite (TESS). The three planets are 1.2, 2.4, and 2.1 times the …