Testing an indirect method for identifying galaxies with high levels of Lyman continuum leakage
Testing an indirect method for identifying galaxies with high levels of Lyman continuum leakage
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测试一种间接方法来识别具有高水平莱曼连续介质泄漏的星系
DOI:
10.1093/mnras/staa2507
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发表时间:
2020
影响因子:
4.8
通讯作者:
Kubo Mariko
中科院分区:
文献类型:
--
作者:
Yamanaka Satoshi;Inoue Akio K;Yamada Toru;Zackrisson Erik;Iwata Ikuru;Micheva Genoveva;Mawatari Ken;Hashimoto Takuya;Kubo Mariko
Using a sample of galaxies atz≈ 3 with detected Lyman Continuum (LyC) leakage in the SSA22 field, we attempt to verify a proposed indirect method for identifying cases with high LyC escape fractionfescbased on measurements of the H β equivalent width (EW) and the β slope of the UV continuum. To this end, we present Keck/MOSFIRE H β emission line flux measurements of LyC galaxies (LCGs) at spectroscopic redshiftszspec∼ 3.3, Lyman break galaxies (LBGs) at photometric redshiftszphot= 2.7–3.7, and Ly α emitters atzphot= 3.1. We also reconfirm the spectroscopic redshifts and measure the H β emission-line fluxes from two LCGs and six LBGs. For the LCG in our sample with the most extremefesc, as revealed by the direct detection of LyC photons, we find that the EW(H β)–β method gives a broadly consistent estimate forfesc, although the error bars remain very large. We also discuss how a combination offescmeasurements based on direct and indirect methods can shed light on the LyC escape mechanism and the anisotropy of the leakage.
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影响因子:
4.8
作者:
S. Giri;E. Zackrisson;C. Binggeli;K. Pelckmans;Ruben Cubo
通讯作者:
Ruben Cubo
影响因子:
4.8
作者:
Y. Izotov;G. Worseck;D. Schaerer;N. Guseva;T. Thuan;K. Fricke;A. Verhamme;I. A. Observatory;Kyiv;Ukraine;Institut fur Physik und Astronomie;U. Potsdam;H Germany;Observatoire de Geneve;Versoix;Switzerland.;A. Department;U. Virginia;Charlottesville;Usa;I. F. Astrophysik;Goettingen Universitat;A. Institute;Prague;Czech Republic
通讯作者:
Y. Izotov;G. Worseck;D. Schaerer;N. Guseva;T. Thuan;K. Fricke;A. Verhamme;I. A. Observatory;Kyiv;Ukraine;Institut fur Physik und Astronomie;U. Potsdam;H Germany;Observatoire de Geneve;Versoix;Switzerland.;A. Department;U. Virginia;Charlottesville;Usa;I. F. Astrophysik;Goettingen Universitat;A. Institute;Prague;Czech Republic
DOI:
10.1086/185259
发表时间:
1988
期刊:
The Astrophysical Journal
影响因子:
--
作者:
L. Cowie;S. Lilly;J. Gardner;I. McLean
通讯作者:
I. McLean
影响因子:
4.8
作者:
E. Vanzella;M. Nonino;G. Cupani;M. Castellano;E. Sani;M. Mignoli;F. Calura;M. Meneghetti;R. Gilli;A. Comastri;A. Mercurio;G. Caminha;K. Caputi;P. Rosati;C. Grillo;C. Grillo;S. Cristiani;I. Balestra;A. Fontana;M. Giavalisco
通讯作者:
M. Giavalisco
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
B. Siana;H. Teplitz;H. Ferguson;T. Brown;M. Giavalisco;M. Dickinson;R. Chary;D. D. de Mello;C. Conselice;C. Bridge;J. Gardner;J. Colbert;C. Scarlata
通讯作者:
C. Scarlata