%A EP Mercer
%A MJ Wolff
%A TM Bania
%A RA Benjamin
%A M Cohen
%A JM Dickey
%A JM Jackson
%A HA Kobulnicky
%A JS Mathis
%A SR Stolovy
%A B Uzpen
%A DP Clemens
%A EB Churchwell
%A JM Rathborne
%A MR Meade
%A BL Babler
%A R Indebetouw
%A BA Whitney
%A C Watson
%A MG Wolfire
%O ? 2007. The American Astronomical Society.
%J The Astrophysical Journal
%T A glimpse of the Southern Jellyfish Nebula and its massive YSO
%X In Spitzer/IRAC images obtained under the GLIMPSE Legacy Survey, we have identified a unique and provocative
nebular object we call the ??Southern Jellyfish Nebula.?? The Southern Jellyfish Nebula is characterized by
a fan of narrow tendrils with extreme length-to-width ratios that emanate from the vicinity of a bright infrared point
source embedded in a smaller resolved nebula. From CO observations of the Nebula?s morphologically associated
molecular cloud, we have derived a kinematic distance of 5:7  0:8 kpc and a cloud mass of 3:2  0:9 ; 103 M. The
tendril-like ropes of the Nebula have widths of 0.1 pc and lengths of up to 2 pc. We have integrated the infrared
spectral energy distribution (SED) of the point source to establish it as a massive young stellar object (MYSO), most
likely forming alone, but possibly masking fainter cluster members. The shape of the SED is consistent with the shape
of a late Class 0 SED model. Based on its far-IR luminosity of 3:3  0:9 ; 104 L, the Southern Jellyfish?sMYSO has
a zero-age main sequence (ZAMS) spectral type of B0. Given the curious nature of this nebula, we suspect its peculiar
IR-bright structure is directly related to its current state of star formation.
%N 1
%P 242-247
%V 656
%D 2007
%I University of Chicago Press
%R 10.1086/510302
%L epprod4098