The CARMA-NRO Orion Survey

Shuo Kong, Héctor G. Arce, Jesse R. Feddersen, John M. Carpenter, Fumitaka Nakamura, Yoshito Shimajiri, Andrea Isella, Volker Ossenkopf-Okada, Anneila I. Sargent, Álvaro Sánchez-Monge, Sümeyye T. Suri, Jens Kauffmann, Thushara Pillai, Jaime E. Pineda, Jin Koda, John Bally, Dariusz C. Lis, Paolo Padoan, Ralf Klessen, Steve MairsAlyssa Goodman, Paul Goldsmith, Peregrine McGehee, Peter Schilke, Peter J. Teuben, María José Maureira, Chihomi Hara, Adam Ginsburg, Blakesley Burkhart, Rowan J. Smith, Anika Schmiedeke, Jorge L. Pineda, Shun Ishii, Kazushige Sasaki, Ryohei Kawabe, Yumiko Urasawa, Shuri Oyamada, Yoshihiro Tanabe

Research output: Contribution to journalReview articlepeer-review

32 Scopus citations

Abstract

We present the first results from a new, high-resolution 12CO(1-0), 13CO(1-0), and C18O(1-0) molecular-line survey of the Orion A cloud, hereafter referred to as the CARMA-NRO Orion Survey. CARMA observations have been combined with single-dish data from the Nobeyama 45 m telescope to provide extended images at about 0.01 pc resolution, with a dynamic range of approximately 1200 in spatial scale. Here we describe the practical details of the data combination in uv space, including flux scale matching, the conversion of single-dish data to visibilities, and joint deconvolution of single-dish and interferometric data. A Δ-variance analysis indicates that no artifacts are caused by combining data from the two instruments. Initial analysis of the data cubes, including moment maps, average spectra, channel maps, position-velocity diagrams, excitation temperature, column density, and line ratio maps, provides evidence of complex and interesting structures such as filaments, bipolar outflows, shells, bubbles, and photo-eroded pillars. The implications for star formation processes are profound, and follow-up scientific studies by the CARMA-NRO Orion team are now underway. We plan to make all the data products described here generally accessible; some are already available at https://dataverse.harvard.edu/dataverse/CARMA-NRO-Orion.

Original languageEnglish (US)
Article number25
JournalAstrophysical Journal, Supplement Series
Volume236
Issue number2
DOIs
StatePublished - Jun 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • ISM: clouds
  • ISM: jets and outflows
  • ISM: kinematics and dynamics
  • ISM: structure
  • photondominated region (PDR)
  • stars: formation

Fingerprint Dive into the research topics of 'The CARMA-NRO Orion Survey'. Together they form a unique fingerprint.

Cite this