Constraining dust extinction properties via the VVV survey
Near-infrared color-excess and extinction ratios are essential for establishing the cosmic distance scale and probing the Galaxy, particularly when analyzing targets attenuated by significant dust. A robust determination of those ratios followed from leveraging new infrared observations from the VVV...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
2016
|
| In: |
Arxiv
|
| Online Access: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1607.08623
|
| Author Notes: | D. Majaess, D. Turner, I. Dekany, D. Minniti, W. Gieren |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1564883191 | ||
| 003 | DE-627 | ||
| 005 | 20220814013059.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 171030s2016 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)1564883191 | ||
| 035 | |a (DE-576)494883197 | ||
| 035 | |a (DE-599)BSZ494883197 | ||
| 035 | |a (OCoLC)1340981321 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Majaess, Daniel |e VerfasserIn |4 aut | |
| 245 | 1 | 0 | |a Constraining dust extinction properties via the VVV survey |c D. Majaess, D. Turner, I. Dekany, D. Minniti, W. Gieren |
| 264 | 1 | |c 2016 | |
| 300 | |a 7 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 30.10.2017 | ||
| 520 | |a Near-infrared color-excess and extinction ratios are essential for establishing the cosmic distance scale and probing the Galaxy, particularly when analyzing targets attenuated by significant dust. A robust determination of those ratios followed from leveraging new infrared observations from the VVV survey, wherein numerous bulge RR Lyrae and Type II Cepheids were discovered, in addition to $BVJHK_{s}(3.4\rightarrow22)\mu m$ data for classical Cepheids and O-stars occupying the broader Galaxy. The apparent optical color-excess ratios vary significantly with Galactic longitude ($\ell$), whereas the near-infrared results are comparatively constant with $\ell$ and Galactocentric distance ($\langle E(J-\overline{3.5\mu m})/E(J-K_s) \rangle =1.28\pm0.03$). The results derived imply that classical Cepheids and O-stars display separate optical trends ($R_{V,BV}$) with $\ell$, which appear to disfavor theories advocating a strict and marked decrease in dust size with increasing Galactocentric distance. The classical Cepheid, Type II Cepheid, and RR Lyrae variables are characterized by $\langle A_{J}/E(J-K_s) \rangle = \langle R_{J,JK_s} \rangle =1.49\pm0.05$ ($\langle A_{K_s}/A_J \rangle =0.33\pm0.02$), whereas the O-stars are expectedly impacted by emission beyond $3.6 \mu m$. The mean optical ratios characterizing classical Cepheids and O-stars are approximately $\langle R_{V,BV} \rangle \sim3.1$ and $\langle R_{V,BV} \rangle \sim3.3$, respectively. | ||
| 650 | 4 | |a Astrophysics - Astrophysics of Galaxies | |
| 700 | 1 | |a Dékány, István |e VerfasserIn |0 (DE-588)1141819686 |0 (DE-627)1000776867 |0 (DE-576)494530308 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Arxiv |d Ithaca, NY : Cornell University, 1991 |g (2016) Artikel-Nummer 1607.08623, 7 Seiten |h Online-Ressource |w (DE-627)509006531 |w (DE-600)2225896-6 |w (DE-576)28130436X |7 nnas |a Constraining dust extinction properties via the VVV survey |
| 773 | 1 | 8 | |g year:2016 |g extent:7 |a Constraining dust extinction properties via the VVV survey |
| 856 | 4 | 0 | |u http://arxiv.org/abs/1607.08623 |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20171030 | ||
| 993 | |a Article | ||
| 998 | |g 1141819686 |a Dékány, István |m 1141819686:Dékány, István |d 500000 |d 500881 |e 500000PD1141819686 |e 500881PD1141819686 |k 0/500000/ |k 1/500000/500881/ |p 3 | ||
| 999 | |a KXP-PPN1564883191 |e 2986233767 | ||
| BIB | |a Y | ||
| JSO | |a {"name":{"displayForm":["D. Majaess, D. Turner, I. Dekany, D. Minniti, W. Gieren"]},"origin":[{"dateIssuedDisp":"2016","dateIssuedKey":"2016"}],"id":{"eki":["1564883191"]},"physDesc":[{"extent":"7 S."}],"relHost":[{"physDesc":[{"extent":"Online-Ressource"}],"origin":[{"publisherPlace":"Ithaca, NY ; [Erscheinungsort nicht ermittelbar]","publisher":"Cornell University ; Arxiv.org","dateIssuedKey":"1991","dateIssuedDisp":"1991-"}],"id":{"zdb":["2225896-6"],"eki":["509006531"]},"pubHistory":["1991 -"],"titleAlt":[{"title":"Arxiv.org"},{"title":"Arxiv.org e-print archive"},{"title":"Arxiv e-print archive"},{"title":"De.arxiv.org"}],"part":{"extent":"7","text":"(2016) Artikel-Nummer 1607.08623, 7 Seiten","year":"2016"},"disp":"Constraining dust extinction properties via the VVV surveyArxiv","note":["Gesehen am 28.05.2024"],"type":{"bibl":"edited-book","media":"Online-Ressource"},"language":["eng"],"recId":"509006531","title":[{"title_sort":"Arxiv","title":"Arxiv"}]}],"person":[{"given":"Daniel","family":"Majaess","role":"aut","display":"Majaess, Daniel","roleDisplay":"VerfasserIn"},{"given":"István","family":"Dékány","role":"aut","display":"Dékány, István","roleDisplay":"VerfasserIn"}],"title":[{"title":"Constraining dust extinction properties via the VVV survey","title_sort":"Constraining dust extinction properties via the VVV survey"}],"note":["Gesehen am 30.10.2017"],"type":{"bibl":"chapter","media":"Online-Ressource"},"recId":"1564883191","language":["eng"]} | ||
| SRT | |a MAJAESSDANCONSTRAINI2016 | ||