Revisiting the Classics: On the Optical Colours of Novae as Standard Crayons
Wedi'i Gadw mewn:
| Cyhoeddwyd yn: | arXiv.org (Dec 19, 2024), p. n/a |
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| Prif Awdur: | |
| Awduron Eraill: | , , , , , , , , , , |
| Cyhoeddwyd: |
Cornell University Library, arXiv.org
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| Pynciau: | |
| Mynediad Ar-lein: | Citation/Abstract Full text outside of ProQuest |
| Tagiau: |
Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!
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MARC
| LEADER | 00000nab a2200000uu 4500 | ||
|---|---|---|---|
| 001 | 3147568381 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 2331-8422 | ||
| 035 | |a 3147568381 | ||
| 045 | 0 | |b d20241219 | |
| 100 | 1 | |a Craig, Peter | |
| 245 | 1 | |a Revisiting the Classics: On the Optical Colours of Novae as Standard Crayons | |
| 260 | |b Cornell University Library, arXiv.org |c Dec 19, 2024 | ||
| 513 | |a Working Paper | ||
| 520 | 3 | |a We present a systematic study of the \(BVRI\) colours of novae over the course of their eruptions. Where possible, interstellar reddening was measured using the equivalent widths of Diffuse Interstellar Bands (DIBs). Some novae lack spectra with sufficient resolution and signal-to-noise ratios; therefore, we supplement as necessary with 3D and 2D dust maps. Utilising only novae with DIB- or 3D-map-based \(E(B-V)\), we find an average intrinsic \((B-V)_0\) colour of novae at \(V\)-band light curve peak of 0.18 with a standard deviation of 0.31, based on a sample of 23 novae. When the light curve has declined by 2 magnitudes (\(t_2\)), we find an average \((B-V)_0 = -0.02\) with a standard deviation of 0.19. These average colours are consistent with previous findings, although the spreads are larger than previously found due to more accurate reddening estimates. We also examined the intrinsic \((R-I)_0\) and \((V-R)_0\) colours across our sample. These colours behave similarly to \((B-V)_0\), except that the \((V-R)_0\) colour gets redder after peak, likely due to the contributions of emission line flux. We searched for correlations between nova colours and \(t_2\), peak \(V\)-band absolute magnitude, and GeV \(\gamma\)-ray luminosity, but find no statistically significant correlations. Nova colours can therefore be used as standard "crayons" to estimate interstellar reddening from photometry alone, with 0.2--0.3 mag uncertainty. We present a novel Bayesian strategy for estimating distances to Galactic novae based on these \(E(B-V)\) measurements, independent of assumptions about luminosity, built using 3D dust maps and a stellar mass model of the Milky Way. | |
| 653 | |a Standard deviation | ||
| 653 | |a Luminosity | ||
| 653 | |a Stellar mass | ||
| 653 | |a Novae | ||
| 653 | |a Maps | ||
| 653 | |a Cosmic dust | ||
| 653 | |a Crayons | ||
| 653 | |a Gamma rays | ||
| 653 | |a Interstellar extinction | ||
| 653 | |a Diffuse interstellar bands | ||
| 653 | |a Light curve | ||
| 700 | 1 | |a Aydi, Elias | |
| 700 | 1 | |a Chomiuk, Laura | |
| 700 | 1 | |a Strader, Jay | |
| 700 | 1 | |a Stone, Ashley | |
| 700 | 1 | |a Sokolovsky, Kirill V | |
| 700 | 1 | |a Mukai, Koji | |
| 700 | 1 | |a Kawash, Adam | |
| 700 | 1 | |a Fló, Joan Guarro | |
| 700 | 1 | |a Boussin, Christophe | |
| 700 | 1 | |a Charbonnel, Stéphane | |
| 700 | 1 | |a Garde, Olivier | |
| 773 | 0 | |t arXiv.org |g (Dec 19, 2024), p. n/a | |
| 786 | 0 | |d ProQuest |t Engineering Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3147568381/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full text outside of ProQuest |u http://arxiv.org/abs/2412.15108 |