The large-scale environment of thermonuclear and core-collapse supernovae

Tsaprazi, Eleni; Jasche, Jens; Goobar, A.; Peiris, Hiranya V.; Andreoni, Igor; Coughlin, M. W.; Fremling, Christoffer; Graham, M. J.; Kasliwal, M. M.; Kulkarni, S. R.; Mahabal, A.; Riddle, Reed; Sollerman, J.; Tzanidakis, Anastasios

doi:10.1093/mnras/stab3525

Cited by 7 publications

(3 citation statements)

References 65 publications

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“…Figure 49 also illustrates that the Zwicky Transient Facility (ZTF) would in principle be capable of observing a catalog of SN with high completeness for z\0:3. In fact, recently a first measurement of the clustering of both core collapse and type Ia SN was performed by ZTF (Tsaprazi et al 2022).…”

Section: Basic Idea and Equationsmentioning

confidence: 99%

Unveiling the Universe with emerging cosmological probes

et al. 2022

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The detection of the accelerated expansion of the Universe has been one of the major breakthroughs in modern cosmology. Several cosmological probes (Cosmic Microwave Background, Supernovae Type Ia, Baryon Acoustic Oscillations) have been studied in depth to better understand the nature of the mechanism driving this acceleration, and they are being currently pushed to their limits, obtaining remarkable constraints that allowed us to shape the standard cosmological model. In parallel to that, however, the percent precision achieved has recently revealed apparent tensions between measurements obtained from different methods. These are either indicating some unaccounted systematic effects, or are pointing toward new physics. Following the development of CMB, SNe, and BAO cosmology, it is critical to extend our selection of cosmological probes. Novel probes can be exploited to validate results, control or mitigate systematic effects, and, most importantly, to increase the accuracy and robustness of our results. This review is meant to provide a state-of-art benchmark of the latest advances in emerging “beyond-standard” cosmological probes. We present how several different methods can become a key resource for observational cosmology. In particular, we review cosmic chronometers, quasars, gamma-ray bursts, standard sirens, lensing time-delay with galaxies and clusters, cosmic voids, neutral hydrogen intensity mapping, surface brightness fluctuations, stellar ages of the oldest objects, secular redshift drift, and clustering of standard candles. The review describes the method, systematics, and results of each probe in a homogeneous way, giving the reader a clear picture of the available innovative methods that have been introduced in recent years and how to apply them. The review also discusses the potential synergies and complementarities between the various probes, exploring how they will contribute to the future of modern cosmology.

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Section: Basic Idea and Equationsmentioning

confidence: 99%

Unveiling the Universe with emerging cosmological probes

et al. 2022

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“…estimation methods are used, [94] exhibits a similar trend of density contrast in the various environments for SDSS galaxies. We confirm that the local geometric index successfully characterizes the environment by comparing the population fractions with earlier works in literature [64,75,94,95], and through visual assessment of the classified distributions. We are unable to analyse the environments of 3 grand-designs and 10 flocculents.…”

Section: Assesment Of Local Geometric Indexmentioning

confidence: 85%

Analyzing the cosmic web environment in the vicinity of grand-design and flocculent spirals with local geometric index

Sarkar,

Narayanan,

Banerjee

2023

J. Cosmol. Astropart. Phys.

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We explore the environment of a combined set of 367 grand-design and 619 flocculent spiral galaxies. We introduce a novel estimator called the local geometric index to quantify the morphology of the local environment of these 986 spirals. The local geometric index allows us to classify the environment of galaxies into voids, sheets, filaments, and clusters. We find that grand-designs are mostly located in dense environments like clusters and filaments (∼ 78%), whereas the fraction of the flocculents lying in sparse environments like voids and sheets is significantly higher (> 10%) than that of the grand-designs. A p-value < 10-3 from a Kolmogorov-Smirnov test indicates that our results are statistically significant at 99.9% confidence level. Further, we note that dense environments with large tidal flows are dominated by the grand-designs. On the other hand, low-density environments such as sheets and voids favor the growth of flocculents.

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“…Such classifications have been used to study the environment of cosmological tracers (e.g. Leclercq et al 2016;Porqueres et al 2018;Tsaprazi et al 2022a). Kruuse et al (2019) further showed that photometric redshifts are positively correlated with filaments detected in spectroscopic galaxy observations.…”

Section: C2 Gravitational Potentialmentioning

confidence: 99%

Higher-order statistics of the large-scale structure from photometric redshifts

Tsaprazi¹,

Jasche²,

Lavaux³

et al. 2023

Preprint

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Context. The large-scale structure is a major source of cosmological information. However, next-generation photometric galaxy surveys will only provide a distorted view of cosmic structures due to large redshift uncertainties. Aims. To address the need for accurate reconstructions of the large-scale structure in presence of photometric uncertainties, we present a framework that constrains the three-dimensional dark matter density jointly with galaxy photometric redshift probability density functions (PDFs), exploiting information from galaxy clustering. Methods. Our forward model provides Markov Chain Monte Carlo realizations of the primordial and present-day dark matter density, inferred jointly from data. Our method goes beyond 2-point statistics via field-level inference. It accounts for all observational uncertainties and the survey geometry. Results. We showcase our method using mock catalogs that emulate next-generation surveys with a worst-case redshift uncertainty, equivalent to ∼300 Mpc. On scales 150 Mpc, we improve the cross-correlation of the photometric galaxy positions with the ground truth from 28% to 86%. The improvement is significant down to 13 Mpc. On scales 150 Mpc, we achieve a cross-correlation of 80 − 90% with the ground truth for the dark matter density, radial peculiar velocities, tidal shear and gravitational potential. Conclusions. We achieve accurate inferences of the large-scale structure on scales smaller than the original redshift uncertainty. Despite the large redshift uncertainty, we recover individual cosmic structures. Owing to our structure growth model, we infer plausible initial conditions of structure formation. Finally, we constrain individual photometric redshift PDFs. This work opens up the possibility to extract information at the smallest cosmological scales with next-generation photometric surveys, going beyond approaches that compress information in the data.

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The large-scale environment of thermonuclear and core-collapse supernovae

Cited by 7 publications

References 65 publications

Unveiling the Universe with emerging cosmological probes

Unveiling the Universe with emerging cosmological probes

Analyzing the cosmic web environment in the vicinity of grand-design and flocculent spirals with local geometric index

Higher-order statistics of the large-scale structure from photometric redshifts

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