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High-lying OH Absorption, [C II] Deficits, and Extreme L FIR/M H2 Ratios in Galaxies
Lutz, D.; Genzel, R.; Poglitsch, A. +22 more
Herschel/PACS observations of 29 local (ultra)luminous infrared galaxies, including both starburst and active galactic nucleus (AGN) dominated sources as diagnosed in the mid-infrared/optical, show that the equivalent width of the absorbing OH 65 µm Π3/2 J = 9/2-7/2 line (W eq(OH65)) with lower level energy E low
Driving Solar Spicules and Jets with Magnetohydrodynamic Turbulence: Testing a Persistent Idea
Cranmer, Steven R.; Woolsey, Lauren N.
The solar chromosphere contains thin, highly dynamic strands of plasma known as spicules. Recently, it has been suggested that the smallest and fastest (Type II) spicules are identical to intermittent jets observed by the Interface Region Imaging Spectrograph. These jets appear to expand out along open magnetic field lines rooted in unipolar netwo…
Chemical Analysis of Asymptotic Giant Branch Stars in M62
Dalessandro, E.; Massari, D.; Mucciarelli, A. +4 more
We have collected UVES-FLAMES high-resolution spectra for a sample of 6 asymptotic giant branch (AGB) and 13 red giant branch (RGB) stars in the Galactic globular cluster (GC) M62 (NGC 6266). Here we present the detailed abundance analysis of iron, titanium, and light elements (O, Na, Mg, and Al). For the majority (five out of six) of the AGB targ…
First Results from the VIRIAL Survey: The Stellar Content of UVJ-selected Quiescent Galaxies at 1.5 < z < 2 from KMOS
van Dokkum, Pieter G.; Bender, Ralf; Mendel, J. Trevor +14 more
We investigate the stellar populations of 25 massive galaxies (log [{{M}*}/{{M}⊙ }]≥slant 10.9) at 1.5\lt z\lt 2 using data obtained with the K-band Multi-Object Spectrograph (KMOS) on the ESO VLT. Targets were selected to be quiescent based on their broadband colors and redshifts using data from the 3D-HST grism survey. The …
The Innermost Mass Distribution of the Gravitational Lens SDP.81 from ALMA Observations
Matsushita, Satoki; Wong, Kenneth C.; Suyu, Sherry H.
The central image of a strongly lensed background source places constraints on the foreground lens galaxy’s inner mass profile slope, core radius, and mass of its nuclear supermassive black hole. Using high-resolution long-baseline Atacama Large Millimeter/submillimeter Array (ALMA) observations and archival Hubble Space Telescope (HST) imaging, w…
Hubble Space Telescope Observations of the NUV Transit of WASP-12b
Goad, M.; Nichols, J. D.; Clarke, J. T. +6 more
We present new observations of four closely spaced near-ultraviolet (NUV) transits of the hot Jupiter-like exoplanet WASP-12b using Hubble Space Telescope (HST)/Cosmic Origins Spectrograph (COS), significantly increasing the phase resolution of the observed NUV light curve relative to previous observations, while minimizing the temporal variation …
Hubble Space Telescope Near-Ultraviolet Spectroscopy of Bright CEMP-s Stars
Smith, Verne V.; Beers, Timothy C.; Placco, Vinicius M. +14 more
We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the bright carbon-enhanced metal-poor (CEMP) stars HD 196944 (V=8.40, [Fe/H] = -2.41) and HD 201626 (V=8.16, [Fe/H] = -1.51), based on data acquired with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope. Both of these stars be…
Modeling of Reflective Propagating Slow-mode Wave in a Flaring Loop
Fang, X.; Xia, C.; Van Doorsselaere, T. +2 more
Quasi-periodic propagating intensity disturbances have been observed in large coronal loops in extreme ultraviolet images over a decade, and are widely accepted to be slow magnetosonic waves. However, spectroscopic observations from Hinode/EIS revealed their association with persistent coronal upflows, making this interpretation debatable. We perf…
Deep Optical Images of Malin 1 Reveal New Features
Infante, Leopoldo; Galaz, Gaspar; Suc, Vincent +4 more
We present Megacam deep optical images (g and r) of Malin 1 obtained with the 6.5 m Magellan/Clay telescope, detecting structures down to ∼28 B mag arcsec-2. In order to enhance galaxy features buried in the noise, we use a noise reduction filter based on the total generalized variation regularizator. This method allows us to detect and…
One Plane for All: Massive Star-forming and Quiescent Galaxies Lie on the Same Mass Fundamental Plane at z ~ 0 and z ~ 0.7
van Dokkum, Pieter G.; Franx, Marijn; Bezanson, Rachel
Scaling relations between galaxy structures and dynamics have been studied extensively for early- and late-type galaxies, both in the local universe and at high redshifts. The abundant differences between the properties of disky and elliptical, or star-forming and quiescent, galaxies seem to be characteristic of the local universe; such clear dist…