High-resolution Pan-STARRS and SMA Observations of IRAS 23077+6707: A Giant Edge-on Protoplanetary Disk

Abstract We present resolved images of IRAS 23077+6707 (“Dracula’s Chivito”) in 1.3 mm/225 GHz thermal dust and CO gas emission with the Submillimeter Array (SMA) and optical (0.5–0.8 μ m) scattered light with the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The Pan-STARRS data...

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Published inAstrophysical journal. Letters Vol. 967; no. 1; p. L2
Main Authors Monsch, Kristina, Lovell, Joshua Bennett, Berghea, Ciprian T., Edenhofer, Gordian, Keating, Garrett K., Andrews, Sean M., Bayyari, Ammar, Drake, Jeremy J., Wilner, David J.
Format Journal Article
LanguageEnglish
Published Austin The American Astronomical Society 01.05.2024
IOP Publishing
Subjects
Astrochemistry
Atmospheric particulates
Bipolar distribution
Carbon monoxide
Celestial bodies
Cepheus constellation
Dust
Emissions
Filaments
Herbig Ae/Be stars
Light emission
Nebulae
Planet formation
Pre-main sequence stars
Protoplanetary disks
Rotating disks
Star formation
Submillimeter astronomy
Upper bounds
Young stellar objects
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Summary:Abstract We present resolved images of IRAS 23077+6707 (“Dracula’s Chivito”) in 1.3 mm/225 GHz thermal dust and CO gas emission with the Submillimeter Array (SMA) and optical (0.5–0.8 μ m) scattered light with the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS). The Pan-STARRS data show a bipolar distribution of optically scattering dust that is characteristic for disks observed at high inclinations. Its scattered light emission spans ∼14″, with two highly asymmetric filaments extending along the upper bounds of each nebula by ∼9″. The SMA data measure 1.3 mm continuum dust as well as 12 CO, 13 CO, and C 18 O J = 2 − 1 line emission over 12″–14″ extents, with the gas presenting the typical morphology of a disk in Keplerian rotation, in both position–velocity space and in each CO line spectrum. IRAS 23077+6707 has no reported distance estimate, but if it is located in the Cepheus star-forming region (180–800 pc), it would have a radius spanning thousands of astronomical units. Taken together, we infer IRAS 23077+6707 to be a giant and gas-rich edge-on protoplanetary disk, which to our knowledge is the largest in extent so far discovered.
Bibliography:AAS52711
Stars and Stellar Physics
ISSN:2041-8205
2041-8213
DOI:10.3847/2041-8213/ad3bb0