Spectrophotometry and chemical composition of the 30 Doradus nebula

Details Spectrophotometry and chemical composition of the 30 Doradus nebula Spectrophotometry and chemical composition of the 30 Doradus nebula

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...292..155m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 292, May 1, 1985, p. 155-163.

Astronomy and Astrophysics

Astrophysics

54

Abundance, Chemical Composition, Magellanic Clouds, Nebulae, Spectrophotometry, Balmer Series, Cosmic Dust, Electron Energy, H Ii Regions, Interstellar Extinction, Oxygen Ions

Scientific paper

Spectra were obtained for 22 locations in the 30 Doradus nebula in the Large Magellanic Cloud (LMC) using the Cassegrain spectrograph of the 1.5-meter telescope at Cerro Tololo. All observations were carried out in the wavelength range 3727-7140 A in five different slit positions. It is shown that the nature of the ionizing source of 30 Dor cannot be determined according to its position in the S(+)/S(++)-O(+)/O plane. Total element abundance ratios were similar to those in the Orion Nebula and the sun for Ne/O, S/O, Ar/O, and Cl/O, although O/H in 30 Dor is about two times smaller than in the Orion Nebula, and 0.3 times that of the sun. The ratios N/O and C/O are both about 0.2 times smaller than in the sun, implying that C/N is constant at about 5.5. The H II region at N66NW in the Small Magellanic Cloud also has a C/N abundance of 5.5, suggesting that both C and N are at least partially secondary elements. The slit positions within the nebula are superimposed on an H-beta photograph of 30 Dor.

Affiliated with

Also associated with

No associations

Rating

Spectrophotometry and chemical composition of the 30 Doradus nebula does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Spectrophotometry and chemical composition of the 30 Doradus nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrophotometry and chemical composition of the 30 Doradus nebula will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1631134