A High Resolution Pressure Scanned Photoelectric Fabry-Perot Spectrometer For Velocity Field Studies Of Extended Objects

Kailash C Sahu; J N Desai; N S. Jog

doi:10.1117/12.966122

9 January 1984 A High Resolution Pressure Scanned Photoelectric Fabry-Perot Spectrometer For Velocity Field Studies Of Extended Objects

Kailash C Sahu, J N Desai, N S. Jog

Author Affiliations +

Proceedings Volume 0445, Instrumentation in Astronomy V; (1984) https://doi.org/10.1117/12.966122
Event: 1983 Astronomy Conferences, 1983, London, United Kingdom

Abstract

The paper briefly describes a high resolution (Rz 50, 000) pressure scanned Fahry-Perot spectro-meter with photon counting detection. The spectrometer, which is designed for the study of emission line profiles in gaseous nebulae, has been used at f/13 Cassegrain focii of 1 metre telescopes in Kavalur and Nainital, India. The pressure variation is done in a step wise fashion; the pressure and photon counts are simultaneously recorded at each step on a paper printer and a digital cassette tape. The spectrometer along with its electronic data acquisition system is schematically given and some interesting results obtained in the velocity mapping of planetary nebulae NGC 3242 and NGC 6720 are presented.

Citation Download Citation

Kailash C Sahu, J N Desai, and N S. Jog "A High Resolution Pressure Scanned Photoelectric Fabry-Perot Spectrometer For Velocity Field Studies Of Extended Objects", Proc. SPIE 0445, Instrumentation in Astronomy V, (9 January 1984); https://doi.org/10.1117/12.966122

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available