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Alignment of dense molecular core morphology and velocity gradients with ambient magnetic fields
Di Francesco, J.; Caselli, P.; Pineda, J. E. +15 more
Studies of dense core morphologies and their orientations with respect to gas flows and the local magnetic field have been limited to only a small sample of cores with spectroscopic data. Leveraging the Green Bank Ammonia Survey alongside existing sub-millimeter continuum observations and Planck dust polarization, we produce a cross-matched catalo…
Milky Way globular clusters on cosmological timescales. III. Interaction rates
Berczik, Peter; Ishchenko, Maryna; Omarov, Chingis +4 more
Aims: We carry out the self-consistent dynamic evolution of the orbital structure of Milky Way globular clusters. This allows us to estimate possible and probable close passages and even collisions of the clusters with each other.
Methods: We reproduced the orbits of 147 globular clusters in 10 Gyr lookback time using our own high-order …
Chrono-chemodynamical analysis of the globular cluster NGC 6355: Looking for the fundamental bricks of the Bulge
Valentini, M.; Chiappini, C.; Bica, E. +7 more
The information on Galactic assembly time is imprinted on the chemodynamics of globular clusters. This makes them important probes that help us to understand the formation and evolution of the Milky Way. Discerning between in-situ and ex-situ origin of these objects is difficult when we study the Galactic bulge, which is the most complex and mixed…
Discovery of two promising isolated neutron star candidates in the SRG/eROSITA All-Sky Survey
Haberl, F.; Buckley, D. A. H.; Pires, A. M. +2 more
We report the discovery of the isolated neutron star (INS) candidates
The discovery of three hot Jupiters, NGTS-23b, 24b, and 25b, and updated parameters for HATS-54b from the Next Generation Transit Survey
de Mooij, Ernst J. W.; Jackman, James A. G.; Wheatley, Peter J. +35 more
We report the discovery of three new hot Jupiters with the Next Generation Transit Survey (NGTS) as well as updated parameters for HATS-54b, which was independently discovered by NGTS. NGTS-23b, NGTS-24b, and NGTS-25b have orbital periods of 4.076, 3.468, and 2.823 d and orbit G-, F-, and K-type stars, respectively. NGTS-24 and HATS-54 appear clos…
Obscuring Environment and X-Ray Variability of Compact Symmetric Objects Unveiled with XMM-Newton and NuSTAR
Ostorero, Luisa; Guainazzi, Matteo; Stawarz, Łukasz +3 more
Compact symmetric objects (CSOs) show radio features such as jets, lobes, and hot spots, which are contained within their host galaxies, and likely represent a recent radio activity. A subpopulation of CSOs with high intrinsic X-ray column densities has been inferred from shallow, soft X-ray band exposures, and observed to cluster in the linear ra…
Radio detections of two unusual cataclysmic variables in the VLA Sky Survey
Heinke, C. O.; Sivakoff, G. R.; Hughes, A. K. +1 more
We report two new radio detections of cataclysmic variables (CVs), and place them in context with radio and X-ray detections of other CVs. We detected QS Vir, a low accretion-rate CV; V2400 Oph, a discless intermediate polar; and recovered the polar AM Her in the Very Large Array Sky Survey 2-4 GHz radio images. The radio luminosities of these sys…
Different higher order kinematics between star-forming and quiescent galaxies based on the SAMI, MAGPI, and LEGA-C surveys
Bell, Eric F.; Übler, Hannah; D'Eugenio, Francesco +38 more
We present the first statistical study of spatially integrated non-Gaussian stellar kinematics spanning 7 Gyr in cosmic time. We use deep, rest-frame optical spectroscopy of massive galaxies (stellar mass $M_\star \gt 10^{10.5} \, \mathrm{M_\odot }$) at redshifts z = 0.05, 0.3, and 0.8 from the SAMI, MAGPI, and LEGA-C surveys, to measure the exces…
M92 (NGC 6341) Is a Metal-complex Globular Cluster with an Atypical Primordial Population
Lee, Jae-Woo
We present a multiple stellar population study of the metal-poor globular cluster (GC) M92 (NGC 6341), which is long known for the substantial metallicity dispersion, using our own photometric system. We find two groups with slightly different mean metallicities, the metal-poor (MP) stars with [Fe/H] hk = -2.412 ± 0.03 and the metal-ri…
Mapping the Decline with Redshift of Dusty Star-forming Galaxies Using JWST and SCUBA-2
Barger, A. J.; Cowie, L. L.
We use JWST NIRCam observations of the massive lensing cluster field A2744 to develop a red galaxy selection of f F444W > 1 µJy and f F444W/f F150W > 3.5 that picks out all nine >4.5σ Atacama Large Millimeter/submillimeter Array 1.1 or 1.2 mm sources and 17 of the 19 >5σ SCUBA-2 850 µm sourc…