units for line strength - absolute flux

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Robin Leadbeater
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units for line strength - absolute flux

Post by Robin Leadbeater »

The units for line strength given for Nova Del 2013 here
http://www.astronomie-amateur.fr/feuill ... 13Del.html
are given as erg/cm2/s/A. As we are integrating the flux over the line profile should the units not be just erg/cm2/s ?

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Robin
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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Andrew Smith
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Re: units for line strength - absolute flux

Post by Andrew Smith »

Looks that way to me Robin. If you integrate up the density of an object over its volume you get it's mass in kg not in kg/m3.

Regards Andrew
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Francois Teyssier
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Re: units for line strength - absolute flux

Post by Francois Teyssier »

Thank you Robin.
You're right : the flux is integrated for the whole line in respect to wavelenght, the unit is erg/cm^2/sec

François
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