论文标题
SFR估计从z = 0到z = 0.9-恒星形成星系的SFR校准器的比较
SFR estimations from z=0 to z=0.9 -- A comparison of SFR calibrators for star-forming galaxies
论文作者
论文摘要
使用毒蛇,我们基于光度和光谱数据估计了一组SFR。我们用作估计器,从紫外线到中红外和光谱线。假设从调查星系发射的代码重建的光谱能量分布中获得的参考SFR,我们估计了每个频段作为SFR示踪剂的可靠性。我们使用GSWLC用红移来追踪这些SFR校准器的依赖性。 The far and near UV, u-band and 24-$μ$m bands, as well as $L_{TIR}$, are found to be good SFR tracers up to $z\sim0.9$ with a strong dependence on the attenuation prescription used for the bluest bands (scatter of SFR of 0.26, 0.14, 0.15, 0.23, and 0.24dex for VIPERS, and 0.25, 0.24, GSWLC的0.09、0.12和0.12DEX。 8- $ $ m频段仅提供对SFR的粗略估计,因为它取决于金属性和多环芳族碳氢化合物特性(毒蛇的0.23DEX散射)。我们估计了FUV,NUV,UGRIZ,K $ _ {\ MATHRM {s}} $,估计CIGALE的静止光度估计分散为0.26、0.14、0.12、0.15和0.20DEX。在中间红移,H $β$线是可靠的SFR示踪剂(散布为0.19DEX),当考虑到$ r_ {23} $参数的金属性时,[OII]系列也提供了同样好的估计(Vipers for Vipers和GSWLC的0.20DEX)。仅当使用金属性或星系的电离参数等其他信息时,基于[OIII]的校准才能检索SFR(Vipers的0.26,GSWLC的0.20 dex),从而降低了其作为直接SFR示踪剂的可用性。基于用Cigale估计的休息框仪,我们提出了自己的一套校准,来自FUV,NUV,U-Band,8,24 $μ$ M,$ L_ {TIR} $,H $β$,[OII]和[OIII]。
Using VIPERS, we estimated a set of SFR based on photometric and spectroscopic data. We used, as estimators, photometric bands from ultraviolet to mid-infrared, and spectral lines. Assuming a reference SFR obtained from the spectral energy distribution reconstructed with Code Investigating GALaxy Emission, we estimated the reliability of each band as an SFR tracer. We used GSWLC to trace the dependence of these SFR calibrators with redshift. The far and near UV, u-band and 24-$μ$m bands, as well as $L_{TIR}$, are found to be good SFR tracers up to $z\sim0.9$ with a strong dependence on the attenuation prescription used for the bluest bands (scatter of SFR of 0.26, 0.14, 0.15, 0.23, and 0.24dex for VIPERS, and 0.25, 0.24, 0.09, 0.12, and 0.12dex for GSWLC). The 8-$μ$m band provides only a rough estimate of the SFR as it depends on metallicity and polycyclic aromatic hydrocarbon properties (scatter of 0.23dex for VIPERS). We estimated the scatter of rest-frame luminosity estimations from CIGALE to be 0.26, 0.14, 0.12, 0.15, and 0.20dex for FUV, NUV, ugriz, K$_{\mathrm{s}}$, and 8-24$μ$m-$L_{\mathrm{TIR}}$). At intermediate redshift, the H$β$ line is a reliable SFR tracer (scatter of 0.19dex) and the [OII] line gives an equally good estimation when the metallicity from the $R_{23}$ parameter is taken into account (0.17 for VIPERS and 0.20dex for GSWLC). A calibration based on [OIII] retrieves the SFR only when additional information such as the metallicity or the ionization parameter of galaxies are used (0.26 for VIPERS and 0.20dex for GSWLC), diminishing its usability as a direct SFR tracer. Based on rest-frame luminosities estimated with CIGALE, we propose our own set of calibrations from FUV, NUV, u-band, 8, 24$μ$m, $L_{TIR}$, H$β$, [OII], and [OIII].