K-band spectrum of water in sunspots

O L  Polyansky; N F  Zobov; S  Viti; J  Tennyson; P F  Bernath; L  Wallace

K-band spectrum of water in sunspots

O L Polyansky, N F Zobov, S Viti, J Tennyson, P F Bernath, L Wallace

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The infrared spectrum of a sunspot, published in the form of an atlas by Wallace & Livingston, is analysed in the 2.17-1.96 mu m (4600-5100 cm(-1)) region where most of the transitions are due to hot water. Assignments are made using variational nuclear motion calculations based on a high-level ab initio electronic surface for water, with allowance for both adiabatic and nonadiabatic corrections to the Born-Oppenheimer approximation. 485 new lines are assigned to transitions in 10 vibrational bands, Only two of these vibrational bands have been previously identified. Newly assigned bands include the (061)-(050) and (071)-(060) vibrational transitions, for which even the lower vibrational levels had not been previously characterized. Assignments are made to levels as high as similar to 17,000 K above the origin.

Original language	English
Pages (from-to)	L205-L208
Number of pages	4
Journal	The Astrophysical Journal
Volume	489
Issue number	2
Publication status	Published - 10 Nov 1997

Keywords

infrared, solar system
infrared, stars
molecular data
sunspots
H2O
ABSORPTION
EMISSION
STARS
VAPOR
SUN

Cite this

@article{ff5e496f7c1f4fa6a75b17c876ea3aa8,

title = "K-band spectrum of water in sunspots",

abstract = "The infrared spectrum of a sunspot, published in the form of an atlas by Wallace & Livingston, is analysed in the 2.17-1.96 mu m (4600-5100 cm(-1)) region where most of the transitions are due to hot water. Assignments are made using variational nuclear motion calculations based on a high-level ab initio electronic surface for water, with allowance for both adiabatic and nonadiabatic corrections to the Born-Oppenheimer approximation. 485 new lines are assigned to transitions in 10 vibrational bands, Only two of these vibrational bands have been previously identified. Newly assigned bands include the (061)-(050) and (071)-(060) vibrational transitions, for which even the lower vibrational levels had not been previously characterized. Assignments are made to levels as high as similar to 17,000 K above the origin.",

keywords = "infrared, solar system, infrared, stars, molecular data, sunspots, H2O, ABSORPTION, EMISSION, STARS, VAPOR, SUN",

author = "Polyansky, {O L} and Zobov, {N F} and S Viti and J Tennyson and Bernath, {P F} and L Wallace",

year = "1997",

month = nov,

day = "10",

language = "English",

volume = "489",

pages = "L205--L208",

journal = "The Astrophysical Journal",

issn = "1538-4357",

publisher = "IOP Publishing",

number = "2",

}

TY - JOUR

T1 - K-band spectrum of water in sunspots

AU - Polyansky, O L

AU - Zobov, N F

AU - Viti, S

AU - Tennyson, J

AU - Bernath, P F

AU - Wallace, L

PY - 1997/11/10

Y1 - 1997/11/10

N2 - The infrared spectrum of a sunspot, published in the form of an atlas by Wallace & Livingston, is analysed in the 2.17-1.96 mu m (4600-5100 cm(-1)) region where most of the transitions are due to hot water. Assignments are made using variational nuclear motion calculations based on a high-level ab initio electronic surface for water, with allowance for both adiabatic and nonadiabatic corrections to the Born-Oppenheimer approximation. 485 new lines are assigned to transitions in 10 vibrational bands, Only two of these vibrational bands have been previously identified. Newly assigned bands include the (061)-(050) and (071)-(060) vibrational transitions, for which even the lower vibrational levels had not been previously characterized. Assignments are made to levels as high as similar to 17,000 K above the origin.

AB - The infrared spectrum of a sunspot, published in the form of an atlas by Wallace & Livingston, is analysed in the 2.17-1.96 mu m (4600-5100 cm(-1)) region where most of the transitions are due to hot water. Assignments are made using variational nuclear motion calculations based on a high-level ab initio electronic surface for water, with allowance for both adiabatic and nonadiabatic corrections to the Born-Oppenheimer approximation. 485 new lines are assigned to transitions in 10 vibrational bands, Only two of these vibrational bands have been previously identified. Newly assigned bands include the (061)-(050) and (071)-(060) vibrational transitions, for which even the lower vibrational levels had not been previously characterized. Assignments are made to levels as high as similar to 17,000 K above the origin.

KW - infrared, solar system

KW - infrared, stars

KW - molecular data

KW - sunspots

KW - H2O

KW - ABSORPTION

KW - EMISSION

KW - STARS

KW - VAPOR

KW - SUN

M3 - Article

SN - 1538-4357

VL - 489

SP - L205-L208

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

ER -