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Sub-stellar companions of intermediate-mass stars with CoRoT: CoRoT-34b, CoRoT-35b, and CoRoT-36b
Alonso, R.; Bouchy, F.; Deleuil, M. +18 more
Theories of planet formation give contradicting results of how frequent close-in giant planets of intermediate mass stars (IMSs; $1.3\le M_{\star }\le 3.2\, \mathrm{M}_{\odot }$) are. Some theories predict a high rate of IMSs with close-in gas giants, while others predict a very low rate. Thus, determining the frequency of close-in giant planets o…
Whence the Interstellar Magnetic Field Shaping the Heliosphere?
McComas, D. J.; Redfield, Seth; Frisch, P. C. +15 more
Measurements of starlight polarized by aligned interstellar dust grains are used to probe the relation between the orientation of the ambient interstellar magnetic field (ISMF) and the ISMF traced by the ribbons of energetic neutral atoms discovered by the Interstellar Boundary Explorer spacecraft. We utilize polarization data, many acquired speci…
Atmospheric and Fundamental Parameters of Eight Nearby Multiple Stars
Al-Wardat, Mashhoor A.; Abu-Alrob, Enas M.; Hussein, Abdallah M. +4 more
We present the complete set of atmospheric and fundamental parameters, in addition to the masses, for the individual components of eight stellar systems. The list of the systems, whose orbital solutions were published recently, includes seven binaries (HIP 14524, HIP 16025, HIP 46199, HIP 47791, HIP 60444, HIP 61100, HIP 73085) and one triple syst…
Outflows and spectral evolution in the eclipsing AMXP SWIFT J1749.4-2807 with NICER, XMM-Newton, and NuSTAR
Altamirano, D.; Albayati, A. C.; Sanna, A. +18 more
The neutron star low-mass X-ray binary SWIFT J1749.4-2807 is the only known eclipsing accreting millisecond X-ray pulsar. In this manuscript, we perform a spectral characterization of the system throughout its 2021, 2-week-long outburst, analysing 11 NICER observations and quasi-simultaneous XMM-Newton and NuSTAR single observations at the outburs…
Gems of the Galaxy Zoos-A Wide-ranging Hubble Space Telescope Gap-filler Program
Scarlata, Claudia; Keel, William C.; Simmons, Brooke D. +13 more
We describe the Gems of the Galaxy Zoos (Zoo Gems) project, a gap-filler project using short windows in the Hubble Space Telescope's schedule. As with previous snapshot programs, targets are taken from a pool based on position; we combine objects selected by volunteers in both the Galaxy Zoo and Radio Galaxy Zoo citizen-science projects. Zoo Gems …
Characterizing the PAH emission in the Orion Bar
Tielens, A. G. G. M.; Peeters, E.; Vacca, W. D. +1 more
We present 5-14 $\mu$m spectra at two different positions across the Orion Bar photodissociation region (PDR) obtained with the Infrared Spectrograph onboard the Spitzer Space Telescope and 3.3 $\mu$m PAH observations obtained with the Stratospheric Observatory for Infrared Astronomy (SOFIA). We aim to characterize emission from Polycyclic Aromati…
Astro-photometric study of M37 with Gaia and wide-field ugi-imaging
Salaris, M.; Anderson, J.; Rosati, P. +15 more
We present an astrometric and photometric wide-field study of the Galactic open star cluster M37 (NGC 2099). The studied field was observed with ground-based images covering a region of about four square degrees in the Sloan-like filters ugi. We exploited the Gaia catalogue to calibrate the geometric distortion of the large field mosaics, developi…
Discovery of eRASSt J192932.9-560346: A bright, two-pole accreting, eclipsing polar
Gromadzki, Mariusz; Buckley, David A. H.; Schwope, Axel +5 more
We report the discovery of a bright (V ~ 15), eclipsing, two-pole accreting magnetic cataclysmic variable (CV), a polar, as counterpart of the SRG/eROSITA and Gaia transients eRASSt J192932.9-560346 and Gaia21bxo. Frequent large-amplitude changes of its brightness at X-ray and optical wavelengths by more than four magnitudes are indicative of a CV…
The GOGREEN survey: constraining the satellite quenching time-scale in massive clusters at z ≳ 1
Cooper, M. C.; Muzzin, Adam; Vulcani, Benedetta +15 more
We model satellite quenching at z ~ 1 by combining 14 massive (1013.8 < Mhalo/M⊙ < 1015) clusters at 0.8 < z < 1.3 from the GOGREEN and GCLASS surveys with accretion histories of 56 redshift-matched analogues from the IllustrisTNG simulation. Our fiducial model, which is parametrized by the s…
Diverse metallicities of Fermi bubble clouds indicate dual origins in the disk and halo
Jenkins, Edward B.; Lockman, Felix J.; Fox, Andrew J. +5 more
The Galactic Centre is surrounded by two giant plasma lobes known as the Fermi bubbles, extending ~10 kpc both above and below the Galactic plane. Spectroscopic observations of Fermi bubble directions at radio, ultraviolet and optical wavelengths have detected multi-phase gas clouds thought to be embedded within the bubbles, referred to as Fermi b…