Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF
The physical conditions of celestial objects can be analyzed using the spectrum of atoms or molecules present in the object. The present work focuses on the spectroscopic analysis of astrophysically significant molecule AlF. The evaluation of Franck-Condon (FC) factors and r-centroids is done by a n...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
|
| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2015/846840 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832561941127626752 |
|---|---|
| author | K. Balachandrakumar V. Raja B. Karthikeyan S. P. Bagare N. Rajamanickam |
| author_facet | K. Balachandrakumar V. Raja B. Karthikeyan S. P. Bagare N. Rajamanickam |
| author_sort | K. Balachandrakumar |
| collection | DOAJ |
| description | The physical conditions of celestial objects can be analyzed using the spectrum of atoms or molecules present in the object. The present work focuses on the spectroscopic analysis of astrophysically significant molecule AlF. The evaluation of Franck-Condon (FC) factors and r-centroids is done by a numerical integration procedure using the suitable potential energy curves for C1Σ+-A1Σ+, b3Σ+-a3Πr, c3Σ-a3Πr, and f3Π-a3Πr band systems of AlF molecule. The intensity of various bands is discussed with the help of derived FC factors. The band degradation and the nature of potential energy curves are studied using r-centroid values. The vibrational temperature of sunspot is estimated to be around 1220 ± 130 K which falls in the reported temperature range of cold sunspots. |
| format | Article |
| id | doaj-art-dc1270f744a54a3abb5b9a79a1aef95d |
| institution | Kabale University |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-dc1270f744a54a3abb5b9a79a1aef95d2025-02-03T01:23:48ZengWileyAdvances in Astronomy1687-79691687-79772015-01-01201510.1155/2015/846840846840Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlFK. Balachandrakumar0V. Raja1B. Karthikeyan2S. P. Bagare3N. Rajamanickam4Department of Physics, Kamaraj College of Engineering and Technology, Virudhunagar 626 001, IndiaDepartment of Physics, RD Government Arts College, Sivagangai 630 560, IndiaDepartment of Physics, Kamaraj College of Engineering and Technology, Virudhunagar 626 001, IndiaIndian Institute of Astrophysics, Bangalore 560 034, IndiaPhysics Research Centre, V.H.N.S.N College, Virudhunagar 626 001, IndiaThe physical conditions of celestial objects can be analyzed using the spectrum of atoms or molecules present in the object. The present work focuses on the spectroscopic analysis of astrophysically significant molecule AlF. The evaluation of Franck-Condon (FC) factors and r-centroids is done by a numerical integration procedure using the suitable potential energy curves for C1Σ+-A1Σ+, b3Σ+-a3Πr, c3Σ-a3Πr, and f3Π-a3Πr band systems of AlF molecule. The intensity of various bands is discussed with the help of derived FC factors. The band degradation and the nature of potential energy curves are studied using r-centroid values. The vibrational temperature of sunspot is estimated to be around 1220 ± 130 K which falls in the reported temperature range of cold sunspots.http://dx.doi.org/10.1155/2015/846840 |
| spellingShingle | K. Balachandrakumar V. Raja B. Karthikeyan S. P. Bagare N. Rajamanickam Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF Advances in Astronomy |
| title | Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF |
| title_full | Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF |
| title_fullStr | Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF |
| title_full_unstemmed | Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF |
| title_short | Evaluation of the Effective Temperature of Sunspots Using Molecular Parameters of AlF |
| title_sort | evaluation of the effective temperature of sunspots using molecular parameters of alf |
| url | http://dx.doi.org/10.1155/2015/846840 |
| work_keys_str_mv | AT kbalachandrakumar evaluationoftheeffectivetemperatureofsunspotsusingmolecularparametersofalf AT vraja evaluationoftheeffectivetemperatureofsunspotsusingmolecularparametersofalf AT bkarthikeyan evaluationoftheeffectivetemperatureofsunspotsusingmolecularparametersofalf AT spbagare evaluationoftheeffectivetemperatureofsunspotsusingmolecularparametersofalf AT nrajamanickam evaluationoftheeffectivetemperatureofsunspotsusingmolecularparametersofalf |