English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Massive early-type galaxies represent the modern-day remnants of the earliestmajor star formation episodes in the history of the universe. These galaxiesare central to our understanding of the evolution of cosmic structure, stellarpopulations, and supermassive black holes, but the details of their complexformation histories remain uncertain. To address this situation, we haveinitiated the MASSIVE Survey, a volume-limited, multi-wavelength,integral-field spectroscopic (IFS) and photometric survey of the structure anddynamics of the ~100 most massive early-type galaxies within a distance of 108Mpc. This survey probes a stellar mass range M* > 10^{11.5} Msun and diversegalaxy environments that have not been systematically studied to date. Ourwide-field IFS data cover about two effective radii of individual galaxies, andfor a subset of them, we are acquiring additional IFS observations onsub-arcsecond scales with adaptive optics. We are also acquiring deep K-bandimaging to trace the extended halos of the galaxies and measure accurate totalmagnitudes. Dynamical orbit modeling of the combined data will allow us tosimultaneously determine the stellar, black hole, and dark matter halo masses.The primary goals of the project are to constrain the black hole scalingrelations at high masses, investigate systematically the stellar initial massfunction and dark matter distribution in massive galaxies, and probe thelate-time assembly of ellipticals through stellar population and kinematicalgradients. In this paper, we describe the MASSIVE sample selection, discuss thedistinct demographics and structural and environmental properties of theselected galaxies, and provide an overview of our basic observational program,science goals and early survey results.

The MASSIVE Survey - I. A Volume-Limited Integral-Field Spectroscopic Study of the Most Massive Early-Type Galaxies within 108 Mpc