A field experiment was carried out from May to September 2008 at the Sutton Bonington campus of the University of Nottingham (52.8° N, 1.2° W). Individual leaf reflectance spectra and RWC were measured every week in the laboratory to collect a total of 69 spectra and RWC values. Some ratio indices were selected to retrieve the beetroot RWC. Figure 1: Spectral power distribution of D65 and of three monochromatic radiations with the same chromaticity co-ordinates, i.e. Metameric to D65. In Figure 2 we show a part of the x,y. JixiPix Premium Pack 1.2.0 + Cracked 837.21 MB Information: The Premium Pack bundles 18 incredible creative effects into one powerful package: Aquarella, Artista Haiku, Artista Oil, Artista Sketch, Artoon, Chalkspiration, Dramatic Black&White, Grungetastic, Kyoobik Photo, Moku Hanga, NIR. Download Submission. Species Aquatic (Other) Gender Male. Size 1280 x 971. Rufus charactober fish doodle walrus ★ Like Spectral-Bat's stuff? Support them by sending some Shinies their way! See more from Spectral. Category All / Doodle. Species Aquatic (Other.

Stellar parameters for the central star of the planetary nebula PRTM 1 using the German Astrophysical Virtual Observatory service TheoSSA

Abstract

The German Astrophysical Virtual Observatory (GAVO) developed the registered service TheoSSA (theoretical stellar spectra access) and the supporting registered VO tool TMAW (Tübingen Model-Atmosphere WWW interface). These allow individual spectral analyses of hot, compact stars with state-of-the-art non-local thermodynamical equilibrium (NLTE) stellar-atmosphere models that presently consider opacities of the elements H, He, C, N, O, Ne, Na, and Mg, without requiring detailed knowledge about the involved background codes and procedures. Presently, TheoSSA provides easy access to about 150 000 pre-calculated stellar spectral energy distributions (SEDs) and is intended to ingest SEDs calculated by any model-atmosphere code. In the case of the exciting star of PN PRTM 1, we demonstrate the easy way to calculate individual NLTE stellar model-atmospheres to reproduce an observed optical spectrum. We measured T_eff = 98 000± 5 000 K, log (g / cm/s^2) = 5.0^{+0.3}_{-0.2}, and photospheric mass fractions of H =7.5 × 10-1 (1.02 times solar), He =2.4 × 10-1 (0.96), C =2.0 × 10-3 (0.84), N =3.2 × 10-4 (0.46), and O =8.5 × 10-3https://softwarefact.mystrikingly.com/blog/acrok-hd-video-converter-crack-for-mac. (1.48) with uncertainties of ±0.2 dex. We determined the stellar mass and luminosity of 0.73^{+0.16}_{-0.15} M_{☉} and log (L/LAlfred powerpack 4 0 9 (1143). ) = 4.2 ± 0.4, respectively.


Publication:
Pub Date:
April 2018
DOI:
10.1093/mnras/sty056
arXiv:
arXiv:1801.01295
Bibcode:
2018MNRAS.475.3896R
Keywords:
  • virtual observatory tools;
  • stars: abundances;
  • stars: AGB and post-AGB;
  • stars: atmospheres;
  • stars: individual: CSPN PRTM 1;
  • planetary nebulae: individual: PN G243.8-37.1;
  • Astrophysics - Solar and Stellar Astrophysics
E-Print:
15 pages, 12 figures

Stellar parameters for the central star of the planetary nebula PRTM 1 using the German Astrophysical Virtual Observatory service TheoSSA

Abstract

The German Astrophysical Virtual Observatory (GAVO) developed the registered service TheoSSA (theoretical stellar spectra access) and the supporting registered VO tool TMAW (Tübingen Model-Atmosphere WWW interface). These allow individual spectral analyses of hot, compact stars with state-of-the-art non-local thermodynamical equilibrium (NLTE) stellar-atmosphere models that presently consider opacities of the elements H, He, C, N, O, Ne, Na, and Mg, without requiring detailed knowledge about the involved background codes and procedures. Presently, TheoSSA provides easy access to about 150 000 pre-calculated stellar spectral energy distributions (SEDs) and is intended to ingest SEDs calculated by any model-atmosphere code. In the case of the exciting star of PN PRTM 1, we demonstrate the easy way to calculate individual NLTE stellar model-atmospheres to reproduce an observed optical spectrum. We measured T_eff = 98 000± 5 000 K, log (g / cm/s^2) = 5.0^{+0.3}_{-0.2}, and photospheric mass fractions of H =7.5 × 10-1 (1.02 times solar), He =2.4 × 10-1 (0.96), C =2.0 × 10-3 (0.84), N =3.2 × 10-4 (0.46), and O =8.5 × 10-3 (1.48) with uncertainties of ±0.2 dex. We determined the stellar mass and luminosity of 0.73^{+0.16}_{-0.15} M_{☉} and log (L/L) = 4.2 ± 0.4, respectively.


Publication:
Pub Date:
April 2018
DOI:
10.1093/mnras/sty056
arXiv:
arXiv:1801.01295
Jixipix Spectral Art 1 1 48

Jixipix Spectral Art 1 1 48 +

Bibcode:
2018MNRAS.475.3896R
Keywords:
  • virtual observatory tools;
  • stars: abundances;
  • stars: AGB and post-AGB;
  • stars: atmospheres;
  • stars: individual: CSPN PRTM 1;
  • planetary nebulae: individual: PN G243.8-37.1;
  • Astrophysics - Solar and Stellar Astrophysics

Jixipix Spectral Art 1 1 48 Inch

E-Print:

Jixipix Spectral Art 1 1 48 Inches

15 pages, 12 figures