DECaPS and SMA discovery of a highly-inclined class I YSO with an outflow: IRAS 08235-4316

We present images of IRAS~08235–4316 with the Dark Energy Camera Plane Survey (DECaPS; spanning 0.398–1.034$\mu$m, at $\sim 1^{\mathrm{\prime }\mathrm{\prime }}$ resolution) and the Submillimeter Array (SMA; at 1.38,mm/217,GHz, at $\sim {1.9}^{\mathrm{\prime }\mathrm{\prime }}\times {1.2}^{\mathrm{\prime }\mathrm{\prime }}$ resolution), a YSO located in the Vela constellation near to the Puppis boundary, detected in a systematic search for new large/extended emission sources. The DECaPS data show an asymmetric bi–polar morphology with a large angular extent of $\sim {7.1}^{\mathrm{\prime }\mathrm{\prime }}$ separated by a dark lane, characteristic of highly–inclined protoplanetary disks and less-evolved YSOs with outflows. The SMA data show an extended continuum structure along the optical dark lane with a smaller angular extent of $\sim {4.6}^{\mathrm{\prime }\mathrm{\prime }}$. The detected ${}^{12}$CO J=2–1 emission tentatively shows a velocity gradient along the position angle of the dark lane/millimeter continuum, that may trace rotating gas. Additional ${}^{12}$CO emission is present which could trace infalling/outflowing gas, and/or a nearby gas cloud. We estimate a distance to IRAS~08235–4316 of at least $\sim 191$pc. Supported by additional SED modelling, we infer IRAS~08235–4316 to be a newly discovered class~I YSO with an outflow, host to an embedded protoplanetary disk, with a large millimeter radius of $\sim 440$,au and dust mass $\gtrsim 11M_{\oplus }$.