Sukanya Chakrabarti et al 2017 ApJL 850 L4
The outer H I disks of spiral galaxies contribute at least as much as dwarf galaxies do to the observed LIGO/Virgo detection rates of black-hole mergers, which may provide insights into formation channels of binary mergers.
Luca Bizzocchi et al 2017 ApJS 233 11
The most complete global analysis is reported of the spectroscopic data of HC3N, a ubiquitous molecule that appears in external galaxies, galactic interstellar clouds, star-forming regions, and planetary atmospheres.
Julia M. Comerford et al 2017 ApJ 849 102
The nucleus of the z = 0.06 galaxy SDSS J1354+1327 is observed to turn off and on, possibly the result of discrete accretion events that could have been triggered by a past interaction with a companion galaxy.
J. M. Miller et al 2017 ApJL 850 L3
Chandra imaging of the black hole at the center of the Perseus cluster suggests an emission region consistent with an extended molecular torus or disk, potentially available to fuel the black hole.
Jun Takahashi et al 2017 AJ 154 213
Spectropolarimetry of the eclipsed Moon — through which we can observe Earth as if it were a transiting exoplanet — shows polarization that may be from multiple scatterings as sunlight first passes through Earth’s atmosphere.
V. Ashley Villar et al 2017 ApJ 849 70
Are voids in the duration–luminosity phase space of observed optical transients real, or are we just missing these objects? Few physical models lead to optical transients that occupy voids.