IC 4406: a radio-infrared comparison
L. Cerrigone (1,2), J. L. Hora (1), G. Umana (2), C. Trigilio (2),, ((1) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA, (2), INAF-Catania Astrophysical Observatory, Catania, Italy)
TL;DR
This study presents a comparison of radio and infrared observations of the planetary nebula IC 4406, revealing co-existing ionized and neutral gas components and detailed structural features.
Contribution
It provides new IRAC and ATCA observations of IC 4406, highlighting the spatial relationship between ionized and neutral gas in the nebula.
Findings
Ionized gas flux is concentrated in the central region.
Ionized and neutral components co-exist spatially.
Radio and infrared images reveal structural details of IC 4406.
Abstract
IC 4406 is a large (about 100'' x 30'') southern bipolar planetary nebula, composed by two elongated lobes, extending from a bright central region, where there is evidence for the presence of a large torus of gas and dust. In this poster we show new observations of this source performed with IRAC (Spitzer Space Telescope) and the Australia Telescope Compact Array. Although the possibility for faint extended emission to be missing in the radio maps cannot be ruled out, flux from the ionized gas appears to be concentrated in the bright central region. Comparing ATCA to IRAC images, it seems that, like in other planetary nebulae, ionized and neutral components spatially co-exist in IC 4406.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsSpacecraft and Cryogenic Technologies · Calibration and Measurement Techniques · Astronomical Observations and Instrumentation