Hidden Trigger for the Giant Starburst Arc in M83?
The huge star formation events that occur at some galactic centers do not provide enough clues as to their origin, since the morphological signatures of the...
High Dense Gas Fraction in a Gas-rich Star-forming Galaxy at z = 1.2
We report observations of dense molecular gas in the star-forming galaxy EGS 13004291 (z = 1.197) using the Plateau de Bure Interferometer. We tentatively...
High Dense Gas Fraction in Intensely Star-forming Dusty Galaxies
We present ALMA J=3{--}2 and VLA J=1{--}0 observations of the dense molecular gas tracers HCN, HCO+, and HNC in two lensed, high-redshift starbursts selected...
High Gas Fraction in a CO-detected Main-sequence Galaxy at z > 3
We report NOrthern Extended Millimetre Array (NOEMA) observations of warm molecular gas traced by CO(5 ‑ 4) in a z∼ 3.2 gas-rich main-sequence (MS) galaxy...
High-frequency Wave Propagation Along a Spicule Observed by CLASP
The Chromospheric Lyman-Alpha Spectro-Polarimeter (CLASP) sounding rocket experiment, launched in 2015 September, observed the hydrogen Lyα line (121.6 nm) in...
High-Ionization Clouds in the Circumnuclear Region of M31
We present two-dimensional spectroscopy of the 125×125 pc2 circumnuclear region of M31, obtained using two optical fiber systems, INTEGRAL and 2D-FIS, installed...
High-redshift BL Lac Objects: Spectroscopy of Candidates
We report on 16 BL Lacertae objects that were proposed to be at z > 1. We present spectroscopic observations secured at the 10.4 m GTC that allowed us to assess...
High-resolution Imaging of NGC 2346 with GSAOI/GeMS: Disentangling the Planetary Nebula Molecular Structure to Understand Its Origin and Evolution
We present high spatial resolution (≈ 60–90 mas) images of the molecular hydrogen emission in the planetary nebula (PN) NGC 2346. The data were acquired during...
High-Resolution Proper Motions in a Sunspot Penumbra
Local correlation tracking techniques are used to measure proper motions in a series of high angular resolution (~0.1") penumbra images. If these motions trace...