Tootfinder

On this episode of Book Club for Masochists: A Readers' Advisory Podcast we’re giving our book pitches for our Battle of the Books 2023! Each of us has picked one title that we think we should all read and discuss and you get to vote for which one it is!
https://book…

I-band photometry of the quiescent black hole X-ray nova GROJ0422 32=V518 Per: modelling of the orbital light curve and estimation of the black hole mass
A. Cherepashchuk, T. Khruzina, K. Atapin
https://arxiv.org/abs/2406.05208

I-band photometry of the quiescent black hole X-ray nova GROJ0422+32=V518 Per: modelling of the orbital light curve and estimation of the black hole mass
We present new photometric observations of the X-ray nova GROJ0422+32 (V518 Per) carried out in the I$_c$ band over 14 nights in 2020 -- 2023. We had to revise the orbital period of the system, the new value $P_{\rm orb}=5^{\rm h}04^{\rm m}35.50^{\rm s} \pm 0.04^{\rm s}$ is about one minute shorter than the period by Webb et al. (2000) but close to the result reported earlier by Filippenko et al. (1995). The obtained folded light curve has a regular shape with a clear ellipticity effect and sig…

Interconnected Markets: Exploring the Dynamic Relationship Between BRICS Stock Markets and Cryptocurrency
Wei Wang, Haibo Wang
https://arxiv.org/abs/2406.07641

Interconnected Markets: Exploring the Dynamic Relationship Between BRICS Stock Markets and Cryptocurrency
This study uses data from the BRICS stock market index, cryptocurrencies, and investor sentiment indicators from January 6, 2015, to June 29, 2023. BRICS nations emerge as pivotal representatives of emerging economies. This study employs a time-varying parameter vector autoregression model to unravel the intricate interdependence between traditional stock assets and the evolving landscape of cryptocurrencies. The analysis investigates spillover effects between BRICS stock markets and cryptocurr…