IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere

We present the most comprehensive collection of stratified-in-optical-depth thermodynamic models of the lower solar atmosphere. This database, named IRIS ^2+ , consists of 40,320 synthetic representative profiles (RPs) and their corresponding representative model atmospheres (RMAs). The latter resul...

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Main Authors: Alberto Sainz Dalda, Aaryan Agrawal, Bart De Pontieu, Milan Gošić
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal Supplement Series
Subjects:
Online Access:https://doi.org/10.3847/1538-4365/ad1e55
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author Alberto Sainz Dalda
Aaryan Agrawal
Bart De Pontieu
Milan Gošić
author_facet Alberto Sainz Dalda
Aaryan Agrawal
Bart De Pontieu
Milan Gošić
author_sort Alberto Sainz Dalda
collection DOAJ
description We present the most comprehensive collection of stratified-in-optical-depth thermodynamic models of the lower solar atmosphere. This database, named IRIS ^2+ , consists of 40,320 synthetic representative profiles (RPs) and their corresponding representative model atmospheres (RMAs). The latter result from inverting the observed RPs, which are the result of clustering multiline spectral profiles observed by the Interface Region Imaging Spectrograph in 126 active regions (ARs). Each AR was clustered in 320 RPs considering five solar features: umbra, pore or pore-like, penumbra, plage, and quiet Sun. The multiline spectral profiles contain 12 lines with encoded physical information from the top of the chromosphere to the midphotosphere. These 12 spectral lines, six chromospheric and six photospheric, were simultaneously inverted with the Stockholm Inversion Code. Therefore, the stratified-in-optical-depth low solar atmosphere models obtained in this study are better constrained than those obtained from the nonsimultaneous inversion of individual lines. Each tuple in the database contains an inverted RP, its corresponding RMA, the solar feature label where the observed RP was clustered, its heliocentric angle, and its date and time of observation. The database may be used as an inversion code for any of the lines present in the RPs, and the RMAs may be used for synthesizing spectral lines in the chromosphere and photosphere or as mean constraints for numerical models of the solar atmosphere.
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spelling doaj.art-7873101591d24929857ad8d461d7ac632024-02-27T09:52:37ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492024-01-0127112410.3847/1538-4365/ad1e55IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar AtmosphereAlberto Sainz Dalda0https://orcid.org/0000-0002-3234-3070Aaryan Agrawal1Bart De Pontieu2https://orcid.org/0000-0002-8370-952XMilan Gošić3https://orcid.org/0000-0002-5879-4371Lockheed Martin Solar & Astrophysics Laboratory , 3251 Hanover Street, Palo Alto, CA 94304, USA; Bay Area Environmental Research Institute , NASA Research Park, Moffett Field, CA 94035, USAHenry M. Gunn High School , 780 Arastradero Road, Palo Alto, CA 94306, USALockheed Martin Solar & Astrophysics Laboratory , 3251 Hanover Street, Palo Alto, CA 94304, USA; Rosseland Center for Solar Physics, University of Oslo , P.O. Box 1029 Blindern, NO-0315 Oslo, Norway; Institute of Theoretical Astrophysics, University of Oslo , P.O. Box 1029 Blindern, NO-0315 Oslo, NorwayLockheed Martin Solar & Astrophysics Laboratory , 3251 Hanover Street, Palo Alto, CA 94304, USA; Bay Area Environmental Research Institute , NASA Research Park, Moffett Field, CA 94035, USAWe present the most comprehensive collection of stratified-in-optical-depth thermodynamic models of the lower solar atmosphere. This database, named IRIS ^2+ , consists of 40,320 synthetic representative profiles (RPs) and their corresponding representative model atmospheres (RMAs). The latter result from inverting the observed RPs, which are the result of clustering multiline spectral profiles observed by the Interface Region Imaging Spectrograph in 126 active regions (ARs). Each AR was clustered in 320 RPs considering five solar features: umbra, pore or pore-like, penumbra, plage, and quiet Sun. The multiline spectral profiles contain 12 lines with encoded physical information from the top of the chromosphere to the midphotosphere. These 12 spectral lines, six chromospheric and six photospheric, were simultaneously inverted with the Stockholm Inversion Code. Therefore, the stratified-in-optical-depth low solar atmosphere models obtained in this study are better constrained than those obtained from the nonsimultaneous inversion of individual lines. Each tuple in the database contains an inverted RP, its corresponding RMA, the solar feature label where the observed RP was clustered, its heliocentric angle, and its date and time of observation. The database may be used as an inversion code for any of the lines present in the RPs, and the RMAs may be used for synthesizing spectral lines in the chromosphere and photosphere or as mean constraints for numerical models of the solar atmosphere.https://doi.org/10.3847/1538-4365/ad1e55The SunSolar photosphereSolar chromosphereRadiative transfer
spellingShingle Alberto Sainz Dalda
Aaryan Agrawal
Bart De Pontieu
Milan Gošić
IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
The Astrophysical Journal Supplement Series
The Sun
Solar photosphere
Solar chromosphere
Radiative transfer
title IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
title_full IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
title_fullStr IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
title_full_unstemmed IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
title_short IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere
title_sort iris2 a comprehensive database of stratified thermodynamic models in the low solar atmosphere
topic The Sun
Solar photosphere
Solar chromosphere
Radiative transfer
url https://doi.org/10.3847/1538-4365/ad1e55
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