Overview

The Extension of HOPS Out to 500 ParSecs (eHOPS) project used archival data to survey all the major star forming molecular clouds within 500 pc of the Sun, except Orion (which was surveyed by HOPS). For every source detected in the Herschel/PACS bands, the eHOPS SED catalogs contain 1-850 micron SEDs assembled from 2MASS, Spitzer, Herschel, WISE, and JCMT/SCUBA-2 data. eHOPS compares the SEDs to a grid of radiative transfer models to constrain the luminosities, envelope densities, and envelope masses of the protostars.

To query for all sources in a molecular cloud, do an All Sky Search with an SQL Constraint (bottom of search page) on eHOPS_ID, for example "eHOPS_ID like 'eHOPS-oph%'" for all sources in Ophiuchus. Or simply do an All Sky Search and filter the eHOPS_ID column of the results table. The ID strings for each cloud are:

Cloud Name	Cloud ID
Aquila	aql
Auriga	aur
Cepheus	cep
Chamaeleon	cha
CrA	cra
Lupus	lup
Musca	mus
Ophiuchus	oph
Perseus	per
Pipe	pipe

If you use eHOPS Aquila data please cite Pokhrel et al. 2023.