We report interstellar Si depletion and dust-phase column densities of Si along 131 Galactic sight lines using previously reported gas-phase Si II column densities, after correcting for the differences in oscillator strengths. With our large sample, we could reproduce the previously reported correlations between depletion of Si and average density of hydrogen along the line of sight (<n(H)>) as well as molecular fraction of hydrogen . We have also studied the variation of amount of Si incorporated in dust with respect to different extinction parameters. With the limitations we have with the quality of data, we could find a strong relation between the Si dust and extinction. While we cannot predict the density dependent distribution of size of Si grains, we discuss about the large depletion fraction of Si and the bigger size of the silicate grains.
Skip Nav Destination
,
,
,
Article navigation
26 June 2013
FIRST INTERNATIONAL CONFERENCE ON CHEMICAL EVOLUTION OF STAR FORMING REGION AND ORIGIN OF LIFE: Astrochem2012
10–13 July 2012
S. N. Bose National Centre for Basic Sciences, Kolkata, India
Research Article|
June 26 2013
Depletion studies in the interstellar medium
U. Haris;
U. Haris
Department of Physics, Christ University, Hosur Road, Bangalore-560 029, Karnataka,
India
Search for other works by this author on:
V. S. Parvathi;
V. S. Parvathi
Department of Physics, Jain University, 3rd Block, Jayanagar, Bangalore - 560 011, Karnataka,
India
Search for other works by this author on:
S. B. Gudennavar;
S. B. Gudennavar
Department of Physics, Christ University, Hosur Road, Bangalore-560 029, Karnataka,
India
Search for other works by this author on:
J. Murthy
J. Murthy
Indian Institute of Astrophysics, II Block, Koramangala, Bangalore- 560 034, Karnataka,
India
Search for other works by this author on:
U. Haris
V. S. Parvathi
S. B. Gudennavar
J. Murthy
Department of Physics, Christ University, Hosur Road, Bangalore-560 029, Karnataka,
India
AIP Conf. Proc. 1543, 64–69 (2013)
Citation
U. Haris, V. S. Parvathi, S. B. Gudennavar, J. Murthy; Depletion studies in the interstellar medium. AIP Conf. Proc. 26 June 2013; 1543 (1): 64–69. https://doi.org/10.1063/1.4812600
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
10
Views
Citing articles via
Inkjet- and flextrail-printing of silicon polymer-based inks for local passivating contacts
Zohreh Kiaee, Andreas Lösel, et al.
The implementation of reflective assessment using Gibbs’ reflective cycle in assessing students’ writing skill
Lala Nurlatifah, Pupung Purnawarman, et al.
Effect of coupling agent type on the self-cleaning and anti-reflective behaviour of advance nanocoating for PV panels application
Taha Tareq Mohammed, Hadia Kadhim Judran, et al.
Related Content
Chemistry in the cold, warm, and hot interstellar medium
AIP Conf. Proc. (June 2013)
Hydrogen and water in the interstellar medium
AIP Conf. Proc. (June 2013)
Observations of the local interstellar medium with the Hopkins Ultraviolet Telescope
AIP Conf. Proc. (June 1992)
Mapping extinction using GALEX and SDSS photometric observations
AIP Conf. Proc. (June 2013)
Interstellar dust: what is it, how does it evolve, and what are its observational consequences?
AIP Conf. Proc. (April 2005)