Metrics of research impact in astronomy: Predicting later impact from metrics measured 10-15 years after the PhD

no code yet • 27 Oct 2021

This paper calibrates how metrics derivable from the SAO/NASA Astrophysics Data System can be used to estimate the future impact of astronomy research careers and thereby to inform decisions on resource allocation such as job hires and tenure decisions.

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Solar and Stellar Astrophysics Digital Libraries

TWEETS

The Synchrony of Production & Escape: Half the Bright Ly$α$ Emitters at $z\approx2$ have Lyman Continuum Escape Fractions $\approx50\%$

no code yet • 22 Oct 2021

We select leakers ($f_{\rm{esc}}>20$%) and non-leakers ($f_{\rm{esc}}<5$%) from a representative sample of $>0. 2 L^{*}$ LyA emitters (LAEs).

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

TWEETS

(Re)Solving Reionization with Lyα: How Bright Lyα Emitters account for the $z\approx2-8$ Cosmic Ionizing Background

no code yet • 22 Oct 2021

Here we introduce an emissivity framework based on Ly$\alpha$ emitters (LAEs), which naturally hones in on the subset of galaxies responsible for the ionizing background due to the intimate connection between the production and escape of Ly$\alpha$ and LyC photons.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics

TWEETS

A search for Planet Nine using the Zwicky Transient Facility public archive

no code yet • 25 Oct 2021

Recent estimates of the characteristics of Planet Nine have suggested that it could be closer than originally assumed.

Earth and Planetary Astrophysics Solar and Stellar Astrophysics

TWEETS

Galaxy Formation and Reionization: Key Unknowns and Expected Breakthroughs by the James Webb Space Telescope

no code yet • 25 Oct 2021

The scheduled launch of James Webb Space Telescope (JWST) in late 2021 marks a new start for studies of galaxy formation at high redshift z>~6 during the era of Cosmic Reionization.

Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

TWEETS

A unique hot Jupiter spectral sequence with evidence for compositional diversity

meganmansfield/hsteclipse 21 Oct 2021

Theoretical models predict a continuum of dayside spectra for hot Jupiters as a function of irradiation level, with the coolest planets having absorption features in their spectra, intermediate-temperature planets having emission features due to thermal inversions, and the hottest planets having blackbody-like spectra due to molecular dissociation and continuum opacity from the H- ion.

Earth and Planetary Astrophysics

TWEETS

HI mapping of the Leo Triplet: Morphologies and kinematics of tails and bridges

no code yet • 25 Oct 2021

An upside-down `Y'-shaped HI gas component (M 65S) is detected in the south of M 65 which suggests that M 65 may also have been involved in the interaction.

Astrophysics of Galaxies

TWEETS

Evolutionary and Observational Consequences of Dyson Sphere Feedback

no code yet • 26 Oct 2021

The search for signs of extraterrestrial technology, or technosignatures, includes the search for objects which collect starlight for some technological use, such as those composing a Dyson sphere.

Solar and Stellar Astrophysics

TWEETS

The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc

no code yet • 22 Oct 2021

We present the TESS discovery of the LHS 1678 (TOI-696) exoplanet system, comprised of two approximately Earth-sized transiting planets and a likely astrometric brown dwarf orbiting a bright ($V_J$=12. 5, $K_s$=8. 3) M2 dwarf at 19. 9 pc.

Earth and Planetary Astrophysics Solar and Stellar Astrophysics

TWEETS

TESS Eclipsing Binary Stars. I. Short cadence observations of 4584 eclipsing binaries in Sectors 1-26

no code yet • 26 Oct 2021

In this paper we present a catalog of 4584 eclipsing binaries observed during the first two years (26 sectors) of the TESS survey.

Solar and Stellar Astrophysics

TWEETS