We analyze the submillimeter emission surrounding the new FU Orionis-type object, HBC 722. We present the first epoch of observations of the active environs of HBC 722, with imaging and spectroscopy ...from PACS, SPIRE, and HIFI aboard the Herschel Space Observatory, as well as CO J= 2-1 and 350 um imaging (SHARC-II) with the Caltech Submillimeter Observatory. The primary source of submillimeter continuum emission in the region -- 2MASS 20581767+4353310 -- is located 16\(\arcsec\) south-southeast of the optical flaring source while the optical and near-IR emission is dominated by HBC 722. A bipolar outflow extends over HBC 722; the most likely driver is the submillimeter source. We detect warm (100 K) and hot (246 K) CO emission in the surrounding region, evidence of outflow-driven heating in the vicinity. The region around HBC 722 itself shows little evidence of heating driven by the new outbursting source itself.
We have obtained three long-slit, far UV spectra of the pre-main sequence
system T Tauri. These HST/STIS spectra show a strong and variable on-source
spectrum composed of both fluoresced H_2 and ...stellar chromospheric lines.
Extended H_2 emission is seen up to 10" from the T Tau system. The on-source
and extended H_2 are both pumped by H I Lyman alpha. The on-source H_2 is
pumped by the red wing of a broad, self-absorbed Ly-alpha line, while the
progressions seen in the extended gas are pumped from near line center. This
suggests that the extended H_2 is pumped locally, and not by the stellar
Ly-alpha line. The H_2 to the north and west coincides with the evacuated
cavity bounded by the optical reflection nebulosity; to the south the extended
H_2 coincides with the HH 255 outflow from the embedded infrared companion T
Tau S. The spatial profile of the extended gas shows a prominent dip coincident
with the position of T Tau S. This may be absorption by a disk associated with
T Tau S. There is no evidence for absorption by a disk surrounding T Tau N
large enough to obscure T Tau S.
We have obtained three long-slit, far UV spectra of the pre-main sequence system T Tauri. These HST/STIS spectra show a strong and variable on-source spectrum composed of both fluoresced H_2 and ...stellar chromospheric lines. Extended H_2 emission is seen up to 10" from the T Tau system. The on-source and extended H_2 are both pumped by H I Lyman alpha. The on-source H_2 is pumped by the red wing of a broad, self-absorbed Ly-alpha line, while the progressions seen in the extended gas are pumped from near line center. This suggests that the extended H_2 is pumped locally, and not by the stellar Ly-alpha line. The H_2 to the north and west coincides with the evacuated cavity bounded by the optical reflection nebulosity; to the south the extended H_2 coincides with the HH 255 outflow from the embedded infrared companion T Tau S. The spatial profile of the extended gas shows a prominent dip coincident with the position of T Tau S. This may be absorption by a disk associated with T Tau S. There is no evidence for absorption by a disk surrounding T Tau N large enough to obscure T Tau S.
