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| Format: | Artículo Open Access |
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Wiley
2024
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| Online Access: | https://onlinelibrary.wiley.com/doi/10.1002/asna.20249015 |
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| author | Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel |
| author_facet | Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel |
| collection | Wiley Open Access |
| contents | Cover Picture: Astron. Nachr. 7/2024 Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel Astronomische Nachrichten First‐light spectra of the Sun as a star taken by SDI‐POL, the Solar Disk Integration POLarimeter feeding the PEPSI night‐time spectrograph at the LBT. The top panel shows the full wavelength range (383 ‐ 907 nm) covered by SDI‐POL. The color of the Stokes I spectra indicates the individual cross dispersers; dark blue (=CD 1) to dark red (=CD 6). The line at the bottom represents the normalized Stokes V Q & U signal on the same intensity scale as Stokes I. The bottom panel is a zoom into the spectral region around the sodium D lines. The top spectrum is again Stokes I (plotted are dots per CCD pixel connected by a line), the bottom spectra are Stokes V Q U shifted by ‐0.10 in intensity and expanded by a factor 200 in scale with respect to Stokes I. The I Q U spectrum was taken on UT May 20, 2022, the V‐spectrum on UT June 22, 2023. The first‐light application detects a clear Stokes V/I profile indicative of a tiny but significant solar disk‐averaged line‐of‐sight net magnetic field of +0.37±0.02 Gauß on Oct. 13, 2023, as reported in the article by Strassmeier et al., this issue, e240033.image 10.1002/asna.20249015 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/asna.20249015 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_asna_20249015 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2024 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | Cover Picture: Astron. Nachr. 7/2024 Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel Astronomische Nachrichten Cover Picture: Astron. Nachr. 7/2024 Klaus G. Strassmeier Ilya Ilyin Manfred Woche Frank Dionies Michael Weber Arto Järvinen Carsten Denker Ekaterina Dineva Meetu Verma Thomas Granzer Wilbert Bittner Svend‐Marian Bauer Jens Paschke Hakan Önel Astronomische Nachrichten First‐light spectra of the Sun as a star taken by SDI‐POL, the Solar Disk Integration POLarimeter feeding the PEPSI night‐time spectrograph at the LBT. The top panel shows the full wavelength range (383 ‐ 907 nm) covered by SDI‐POL. The color of the Stokes I spectra indicates the individual cross dispersers; dark blue (=CD 1) to dark red (=CD 6). The line at the bottom represents the normalized Stokes V Q & U signal on the same intensity scale as Stokes I. The bottom panel is a zoom into the spectral region around the sodium D lines. The top spectrum is again Stokes I (plotted are dots per CCD pixel connected by a line), the bottom spectra are Stokes V Q U shifted by ‐0.10 in intensity and expanded by a factor 200 in scale with respect to Stokes I. The I Q U spectrum was taken on UT May 20, 2022, the V‐spectrum on UT June 22, 2023. The first‐light application detects a clear Stokes V/I profile indicative of a tiny but significant solar disk‐averaged line‐of‐sight net magnetic field of +0.37±0.02 Gauß on Oct. 13, 2023, as reported in the article by Strassmeier et al., this issue, e240033.image 10.1002/asna.20249015 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | Cover Picture: Astron. Nachr. 7/2024 |
| topic | Astronomische Nachrichten |
| url | https://onlinelibrary.wiley.com/doi/10.1002/asna.20249015 |