Rajeev Singh Rathour

4 Questions 2 Answers 0 Followers

Questions related from Rajeev Singh Rathour

Are there any stellar evolutionary tracks and isochrones to determine mass and age of cool stars with photospheric temperatures around 4000K?

Object with Teff around 4100 K is not within the computed results of Girardi tracks and isochrones. Any other resource for cool stars?

21 February 2018 8,508 0 View

Any mathematical relation between core mass and envelope mass of Giants (for low or intermediate mass stars)?

Any mathematical relation between core mass and envelope mass of Giants (for low or intermediate mass stars)? Also any age-metallicity relation applying to the above case?

21 February 2018 6,179 1 View

Is there any procedure manual on how to use MOOG code for spectral abundance analysis and spectral synthesis?

The use of line abundance analysis using equivalent width and Kurucz model atmospheres in MOOG code is something done for chemical abundance analysis in stellar astronomy. However there is no...

08 January 2018 5,150 2 View

Any method to correct for radial velocity of metal-poor star spectra than averaging prominent Fe line shift?

What are the best possible procedures of correcting for radial velocity in metal poor star having [Fe/H] around -2. We use arcturus spectra as reference but at Teff 4000K and lower metallicity it...

18 December 2017 9,042 0 View