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

We present a large sample of new members of the Taurus star-forming regionthat extend from stellar to planetary masses. To identify candidate members atsubstellar masses, we have used color-magnitude diagrams and proper motionsmeasured with several wide-field optical and infrared (IR) surveys. At stellarmasses, we have considered the candidate members that were found in a recentanalysis of high-precision astrometry from the Gaia mission. Using new andarchival spectra, we have measured spectral types and assessed membership forthese 161 candidates, 79 of which are classified as new members. Our updatedcensus of Taurus now contains 519 known members. According to Gaia data, thiscensus should be nearly complete for spectral types earlier than M6-M7 atA_J<1. For a large field encompassing ~72% of the known members, the censusshould be complete for K<15.7 at A_J<1.5, which corresponds to ~5-13 M_Jup forages of 1-10 Myr based on theoretical evolutionary models. Our survey hasdoubled the number of known members at greater or equal to M9 and has uncoveredthe faintest known member in M_K, which should have a mass of ~3-10 M_Jup forages of 1-10 Myr. We have used mid-IR photometry from the Spitzer SpaceTelescope and the Wide-field Infrared Survey Explorer to determine whether thenew members exhibit excess emission that would indicate the presence ofcircumstellar disks. The updated disk fraction for Taurus is ~0.7 at less thanor equal to M3.5 and ~0.4 at >M3.5.

A Survey for New Members of Taurus from Stellar to Planetary Masses