Photometric type Ia supernova surveys in narrow band filters

Abstract

We study the characteristics of a narrow band type Ia supernova survey through simulations based on the upcoming Javalambre Physics of the accelerating universe Astrophysical Survey (J-PAS). This unique survey has the capabilities of obtaining distances, redshifts, and the SN type from a single experiment thereby circumventing the challenges faced by the resource-intensive spectroscopic follow-up observations. We analyse the flux measurements signal-to-noise ratio and bias, the supernova typing performance, the ability to recover light curve parameters given by the SALT2 model, the photometric redshift precision from type Ia supernova light curves and the effects of systematic errors on the data. We show that such a survey is not only feasible but may yield large type Ia supernova samples (up to 250 supernovae at $z<0.5$ per month of search) with low core collapse contamination ($\sim 1.5$ per cent), good precision on the SALT2 parameters (average ${\sigma }_{m_B}=0.063$, ${\sigma }_{x_1}=0.47$ and ${\sigma }_c=0.040$) and on the distance modulus (average ${\sigma }_{\mu }=0.16$, assuming an intrinsic scatter ${\sigma }_{\mathrm{int}}=0.14$), with identified systematic uncertainties ${\sigma }_{\mathrm{sys}}\lesssim 0.10{\sigma }_{\mathrm{stat}}$. Moreover, the filters are narrow enough to detect most spectral features and obtain excellent photometric redshift precision of ${\sigma }_z=0.005$, apart from $\sim$ 2 per cent of outliers. We also present a few strategies for optimising the survey's outcome. Together with the detailed host galaxy information, narrow band surveys can be very valuable for the study of supernova rates, spectral feature relations, intrinsic colour variations and correlations between supernova and host galaxy properties, all of which are important information for supernova cosmological applications.

20 pages, 12 tables and 26 figures. Version accepted by MNRAS, with results slightly different from previous one

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Cited by in corpus (3)

• J-PLUS: The Javalambre Photometric Local Universe Survey
• An Accurate Cluster Selection Function for the J-PAS Narrow-Band wide-field survey
• Photometric Supernovae Redshift Systematics Requirements