Near-IR spectroscopy of the gravitationally lensed quasar PS J0147+4630

IF 2.1 4区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

New Astronomy Pub Date : 2025-09-30 DOI:10.1016/j.newast.2025.102479

Luis J. Goicoechea , Vyacheslav N. Shalyapin

{"title":"Near-IR spectroscopy of the gravitationally lensed quasar PS J0147+4630","authors":"Luis J. Goicoechea , Vyacheslav N. Shalyapin","doi":"10.1016/j.newast.2025.102479","DOIUrl":null,"url":null,"abstract":"<div><div>The quadruply-imaged gravitationally lensed quasar PS J0147+4630 at redshift <span><math><mrow><mi>z</mi><mo>></mo></mrow></math></span> 2 is a good candidate for time delay cosmography and microlensing-based source structure studies. In this paper, new spectra of its four images are derived from archive data of two 10-m class telescopes. We focus on the unexplored near-IR spectral region including the Mg <span>iii</span>] and H<span><math><mi>α</mi></math></span> emission lines (0.9<span><math><mrow><mo>−</mo><mn>2</mn><mo>.</mo><mn>4</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>), and measure image flux ratios for the emission lines and their underlying continua, as well as a reliable quasar redshift of 2.357 ± 0.002. We also find evidence of an outflow in the H<span><math><mi>α</mi></math></span> emission and estimate a quasar black-hole logarithmic mass <span><math><mrow><mo>log</mo><mfenced><mrow><msub><mrow><mi>M</mi></mrow><mrow><mi>BH</mi></mrow></msub><mo>/</mo><msub><mrow><mi>M</mi></mrow><mrow><mo>⊙</mo></mrow></msub></mrow></mfenced></mrow></math></span> = 9.34 ± 0.30.</div></div>","PeriodicalId":54727,"journal":{"name":"New Astronomy","volume":"122 ","pages":"Article 102479"},"PeriodicalIF":2.1000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Astronomy","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1384107625001290","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}

引用次数: 0

Abstract

The quadruply-imaged gravitationally lensed quasar PS J0147+4630 at redshift

z >

2 is a good candidate for time delay cosmography and microlensing-based source structure studies. In this paper, new spectra of its four images are derived from archive data of two 10-m class telescopes. We focus on the unexplored near-IR spectral region including the Mg ii, H

β

, [O iii] and H

α

emission lines (0.9

- 2.4 μ m

), and measure image flux ratios for the emission lines and their underlying continua, as well as a reliable quasar redshift of 2.357 ± 0.002. We also find evidence of an outflow in the H

α

emission and estimate a quasar black-hole logarithmic mass

log (M_{BH} / M_{⊙})

= 9.34 ± 0.30.

查看原文本刊更多论文

引力透镜类星体PS J0147+4630的近红外光谱

四重成像引力透镜类星体PS J0147+4630在红移z>； 2是一个很好的候选时间延迟宇宙学和基于微透镜的源结构研究。本文从两个10米级望远镜的存档数据中导出了它的四幅图像的新光谱。我们关注未探测的近红外光谱区域，包括Mg ii， Hβ， [O iii]和Hα发射线（0.9−2.4μm），并测量了发射线及其下面连续体的图像通量比，以及可靠的类星体红移为2.357±0.002。我们还发现了在Hα辐射中有流出的证据，并估计类星体黑洞的对数质量logMBH/M⊙= 9.34±0.30。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

New Astronomy 地学天文-天文与天体物理

CiteScore

4.00

自引率

10.00%

发文量

109

审稿时长

13.6 weeks

期刊介绍： New Astronomy publishes articles in all fields of astronomy and astrophysics, with a particular focus on computational astronomy: mathematical and astronomy techniques and methodology, simulations, modelling and numerical results and computational techniques in instrumentation. New Astronomy includes full length research articles and review articles. The journal covers solar, stellar, galactic and extragalactic astronomy and astrophysics. It reports on original research in all wavelength bands, ranging from radio to gamma-ray.