The HIFI spectral survey of massive star-forming region AFGL 2591

Maja Kazmierczak; Floris van der Tak; Frank Helmich; Luis Chvarria; Kuo-Song Wang; Cecilia Ceccarelli

The HIFI spectral survey of massive star-forming region AFGL 2591

Maja Kazmierczak, Floris van der Tak, Frank Helmich, Luis Chvarria, Kuo-Song Wang, Cecilia Ceccarelli

Astronomy

Research output: Contribution to conference › Poster › Academic

Abstract

AFGL 2591 is a massive protostellar object with a bipolar outflow. It has been widely studied before since it is a relatively isolated and nearby star-forming region. Here we present an overview of the Herschel/HIFI spectral survey, as a part of CHESS Key Project. The survey covers a frequency range from 480 up to 1240 GHz as well as some particular lines from 1267 to 1901 GHz. From the spectral survey a total of 32 species were identified. The data analysis is divided into various families of molecules, eg. CO and its isotopologues, nitrogen-bearing molecules, sulfur-bearing species, organic molecules. We will discuss different types of observed molecules and their physical parameters. The radial abundance profiles of some molecules will be presented to learn about the chemical processes leading to their formation and destruction. One of the studied molecule is ammonia, which is concentrated in the inner part of the protostellar envelope (when T > 100K i.e. where water ice evaporates), with the abundance of 3x10e-7.

Original language	English
Pages	1
Publication status	Published - Jul-2013
Event	Protostars and Planets VI - Heidelberg, Germany Duration: 15-Jul-2013 → 20-Jul-2013

Conference

Conference	Protostars and Planets VI
Country/Territory	Germany
City	Heidelberg
Period	15/07/2013 → 20/07/2013

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http://adsabs.harvard.edu/abs/2013prpl.conf1B069K

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Cite this

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title = "The HIFI spectral survey of massive star-forming region AFGL 2591",

abstract = "AFGL 2591 is a massive protostellar object with a bipolar outflow. It has been widely studied before since it is a relatively isolated and nearby star-forming region. Here we present an overview of the Herschel/HIFI spectral survey, as a part of CHESS Key Project. The survey covers a frequency range from 480 up to 1240 GHz as well as some particular lines from 1267 to 1901 GHz. From the spectral survey a total of 32 species were identified. The data analysis is divided into various families of molecules, eg. CO and its isotopologues, nitrogen-bearing molecules, sulfur-bearing species, organic molecules. We will discuss different types of observed molecules and their physical parameters. The radial abundance profiles of some molecules will be presented to learn about the chemical processes leading to their formation and destruction. One of the studied molecule is ammonia, which is concentrated in the inner part of the protostellar envelope (when T > 100K i.e. where water ice evaporates), with the abundance of 3x10e-7.",

author = "Maja Kazmierczak and {van der Tak}, Floris and Frank Helmich and Luis Chvarria and Kuo-Song Wang and Cecilia Ceccarelli",

year = "2013",

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language = "English",

pages = "1",

note = "Protostars and Planets VI ; Conference date: 15-07-2013 Through 20-07-2013",

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TY - CONF

T1 - The HIFI spectral survey of massive star-forming region AFGL 2591

AU - Kazmierczak, Maja

AU - van der Tak, Floris

AU - Helmich, Frank

AU - Chvarria, Luis

AU - Wang, Kuo-Song

AU - Ceccarelli, Cecilia

PY - 2013/7

Y1 - 2013/7

N2 - AFGL 2591 is a massive protostellar object with a bipolar outflow. It has been widely studied before since it is a relatively isolated and nearby star-forming region. Here we present an overview of the Herschel/HIFI spectral survey, as a part of CHESS Key Project. The survey covers a frequency range from 480 up to 1240 GHz as well as some particular lines from 1267 to 1901 GHz. From the spectral survey a total of 32 species were identified. The data analysis is divided into various families of molecules, eg. CO and its isotopologues, nitrogen-bearing molecules, sulfur-bearing species, organic molecules. We will discuss different types of observed molecules and their physical parameters. The radial abundance profiles of some molecules will be presented to learn about the chemical processes leading to their formation and destruction. One of the studied molecule is ammonia, which is concentrated in the inner part of the protostellar envelope (when T > 100K i.e. where water ice evaporates), with the abundance of 3x10e-7.

AB - AFGL 2591 is a massive protostellar object with a bipolar outflow. It has been widely studied before since it is a relatively isolated and nearby star-forming region. Here we present an overview of the Herschel/HIFI spectral survey, as a part of CHESS Key Project. The survey covers a frequency range from 480 up to 1240 GHz as well as some particular lines from 1267 to 1901 GHz. From the spectral survey a total of 32 species were identified. The data analysis is divided into various families of molecules, eg. CO and its isotopologues, nitrogen-bearing molecules, sulfur-bearing species, organic molecules. We will discuss different types of observed molecules and their physical parameters. The radial abundance profiles of some molecules will be presented to learn about the chemical processes leading to their formation and destruction. One of the studied molecule is ammonia, which is concentrated in the inner part of the protostellar envelope (when T > 100K i.e. where water ice evaporates), with the abundance of 3x10e-7.

M3 - Poster

SP - 1

T2 - Protostars and Planets VI

Y2 - 15 July 2013 through 20 July 2013

ER -