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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present the optical to near-infrared (IR) spectrum of the galaxy TSPSJ1329-0957, a red and bright member of the class of extremely red objects(EROs) at z = 1.26. This galaxy was found in the course of the Tokyo-StromloPhotometry Survey (TSPS) which we are conducting in the southern sky. Thespectroscopic observations were carried out with the Gemini Multi-ObjectSpectrograph (GMOS) and the Gemini Near Infra-Red Spectrograph (GNIRS) mountedon the Gemini-South telescope. The wide wavelength coverage of 0.6 - 2.3 umprovides useful clues as to the nature of EROs while most published spectra arelimited to a narrower spectral range which is dictated by the need forefficient redshift determination in a large survey. We compare our spectrumwith several optical composite spectra obtained in recent large surveys, andwith stellar population synthesis models. The effectiveness of using near-IRbroad-band data, instead of the spectral data, in deriving the galaxyproperties are also investigated. We find that TSPS J1329-0957 formed when theuniverse was 2 - 3 Gyr old, and subsequently evolved passively to become one ofthe most massive galaxies found in the z = 1 - 2 universe. Its early type andestimated stellar mass of M* = 10^{11.5} Msun clearly point to this galaxybeing a direct ancestor of the brightest elliptical and spheroidal galaxies inthe local universe.

Optical to Near-IR Spectrum of a Massive Evolved Galaxy at z = 1.26