We present the properties of a group of young stars associated with the well-studied T Tauri star system AS 353 , located in the Aquila star-forming region .
The association is identified using radial velocity measurements of sample objects selected from the Herbig and Bell Catalog based on their spatial proximity to AS 353 .
Radial velocities of nine objects were measured from multi-epoch high-resolution ( R \sim 30,000 ) H -band spectra obtained with NIRSPEC on Keck II .
High-resolution K -band spectra were also obtained for most of the sample objects .
Spectral types and rotational velocities are determined for all objects in the sample .
The multi-epoch H -band spectra were examined for radial velocity variations in order to detect possible spectroscopic binaries .
Eight of the nine objects have radial velocities that are consistent within the 1- \sigma scatter of the sample .
From their mean of - 8 km s ^ { -1 } these eight objects have a standard deviation of 2 km s ^ { -1 } , which suggests that the sample stars are related .
The ninth object shows significant radial velocity variations between epochs , characteristic of a spectroscopic binary .
The overall multiplicity of the sample is high ; we observed 13 stars in seven systems , identifying three new candidate binary components in this project .
Many of the spectra reveal hydrogen emission lines typical of strong accretion processes , indicating that most of these objects harbor circumstellar disks and are less than a few million years old .
Based on previous estimates , we adopt a distance of 200 \pm 30 pc to the young stars in Aquila in order to calculate luminosities and place the stars on an H-R diagram .
We discuss possible interpretations of the enigmatic pure emission line spectrum of HBC 684 .
This work represents the highest spectral resolution infrared observations to date of these intriguing , nearby young stars .