WEKO3
アイテム
Diversity of Early Kilonova with the Realistic Opacities of Highly Ionized Heavy Elements
http://hdl.handle.net/10655/0002000707
http://hdl.handle.net/10655/0002000707030663a8-5adc-42d7-8b92-f8ed8cef483d
名前 / ファイル | ライセンス | アクション |
---|---|---|
![]() |
Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
公開日 | 2024-07-11 | |||||||||||||
タイトル | ||||||||||||||
言語 | en | |||||||||||||
タイトル | Diversity of Early Kilonova with the Realistic Opacities of Highly Ionized Heavy Elements | |||||||||||||
言語 | ||||||||||||||
言語 | eng | |||||||||||||
資源タイプ | ||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_ddb1 | |||||||||||||
資源タイプ | dataset | |||||||||||||
著者 |
SMARANIKA, Banerjee
× SMARANIKA, Banerjee
× TANAKA, Masaomi
× KATO, Daiji
× GAIGALAS, Gediminas
|
|||||||||||||
著者ID | ||||||||||||||
内容記述タイプ | Other | |||||||||||||
内容記述 | ORCID 0000-0002-0786-7307 | |||||||||||||
抄録 | ||||||||||||||
内容記述タイプ | Abstract | |||||||||||||
内容記述 | We investigate early (t < 1 day) kilonova from a neutron star merger by deriving atomic opacities for all the elements from La to Ra (Z = 57–88) ionized to the states V–XI. The opacities at high temperatures for the elements with open f-shells (e.g., lanthanides) are exceptionally high, reaching kexp ~ 3 ´ 10 cm g- 3 2 1at λ 1000 Å at T ∼ 70,000 K, whereas the opacities at the same temperature and wavelengths for the elements with open d-, p-, and s-shells reach kexp ~ 1, 0.1, and 0.01 cm2 g−1, respectively. Using the new opacity data set, we derive early kilonovae for various compositions and density structures expected for neutron star merger ejecta. The bolometric luminosity of the lanthanide-rich ejecta shows distinct signatures and is fainter than that of the lanthanide-free ejecta. Early luminosity is suppressed by the presence of a thin outer layer, agreeing with the results of Kasen et al. and Banerjee et al. The early brightness in the Swift UVOT filters and in the optical g, r, i, and z filters for a source at 100 Mpc are about ∼22–19.5 and ∼21–20 mag, respectively, at t ∼ 0.1 day. Such kilonovae are ideal targets for the upcoming UV satellites, such as ULTRASAT, UVEX, and DORADO, and the upcoming surveys, e.g., the Vera Rubin Observatory. We suggest that the gray opacities that reproduce the bolometric light curves with and without lanthanides are ∼1–10 and ∼0.8 cm2 g−1. |
|||||||||||||
言語 | en | |||||||||||||
書誌情報 |
en : The Astrophysical Journal 巻 968, 号 2, p. 64, 発行日 2024-06-11 |
|||||||||||||
出版者 | ||||||||||||||
言語 | en | |||||||||||||
出版者 | American Astronomical Society | |||||||||||||
出版者 | ||||||||||||||
言語 | en | |||||||||||||
出版者 | IOP Publishing | |||||||||||||
ISSN | ||||||||||||||
収録物識別子タイプ | ISSN | |||||||||||||
収録物識別子 | 0004-637X | |||||||||||||
書誌レコードID | ||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||
収録物識別子 | AA00553253 | |||||||||||||
DOI | ||||||||||||||
関連タイプ | isIdenticalTo | |||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | 10.3847/1538-4357/ad4029 | |||||||||||||
権利 | ||||||||||||||
言語 | en | |||||||||||||
権利情報 | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |||||||||||||
権利 | ||||||||||||||
言語 | en | |||||||||||||
権利情報 | © 2024. The Author(s). | |||||||||||||
情報源 | ||||||||||||||
言語 | en | |||||||||||||
関連名称 | Smaranika Banerjee et al 2024 ApJ 968 64 | |||||||||||||
関連サイト | ||||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | https://doi.org/10.3847/1538-4357/ad4029 | |||||||||||||
関連名称 | Publisher version | |||||||||||||
著者版フラグ | ||||||||||||||
出版タイプ | VoR | |||||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||
NAIS | ||||||||||||||
14330 |