Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Sahu, Nandini"'
Autor:
Barone, Tania M., Kacprzak, Glenn G., Nightingale, James W., Nielsen, Nikole M., Glazebrook, Karl, Tran, Kim-Vy H., Jones, Tucker, Nateghi, Hasti, C., Keerthi Vasan G., Sahu, Nandini, Nanayakkara, Themiya, Skobe, Hannah, van de Sande, Jesse, Lopez, Sebastian, Lewis, Geraint F.
While quiescent galaxies have comparable amounts of cool gas in their outer circumgalactic medium (CGM) compared to star-forming galaxies, they have significantly less interstellar gas. However, open questions remain on the processes causing galaxies
Externí odkaz:
http://arxiv.org/abs/2408.07984
Autor:
Sahu, Nandini, Tran, Kim-Vy, Suyu, Sherry H., Shajib, Anowar J., Ertl, Sebastian, Kacprzak, Glenn G., Glazebrook, Karl, Jones, Tucker, C., Keerthi Vasan G., Barone, Tania M., Baker, A. Makai, Skobe, Hannah, Derkenne, Caro, Lewis, Geraint F., Sweet, Sarah M., Lopez, Sebastian
Observed evolution of the total mass distribution with redshift is crucial to testing galaxy evolution theories. To measure the total mass distribution, strong gravitational lenses complement the resolved dynamical observations currently limited to $
Externí odkaz:
http://arxiv.org/abs/2405.15427
Autor:
Graham, Alister W., Sahu, Nandini
Publikováno v:
MNRAS, 520, 1975 (2023)
We recently revealed that bulges and elliptical galaxies broadly define distinct, super-linear relations in the $M_{\rm bh}$-$M_{\rm *,sph}$ diagram, with the order-of-magnitude lower $M_{\rm bh}/M_{\rm *,sph}$ ratios in the elliptical galaxies due t
Externí odkaz:
http://arxiv.org/abs/2210.09557
Publikováno v:
MNRAS, 518, 1352 (2023)
Local early-type galaxies with directly-measured black hole masses, $M_{\rm bh}$, have been reported to represent a biased sample relative to the population at large. Such galaxies with Spitzer Space Telescope imaging have been purported to possess v
Externí odkaz:
http://arxiv.org/abs/2210.02641
Autor:
Graham, Alister W., Sahu, Nandini
Publikováno v:
MNRAS, 518, 2177 (2023)
We present revised (black hole mass)-(spheroid stellar mass) and (black hole mass)-(galaxy stellar mass) scaling relations based on colour-dependent stellar mass-to-light ratios. Our 3.6 micron luminosities were obtained from multicomponent decomposi
Externí odkaz:
http://arxiv.org/abs/2209.14526
We analyse the bulge/spheroid size-(stellar mass), $R_{\rm e,Sph}-M_{\rm *,Sph}$, relation and spheroid structural parameters for 202 local (predominantly $\lesssim 110~\rm Mpc$) galaxies spanning $ M_*\sim 3\times10^{9}-10^{12}~\rm M_{\odot}$ and $
Externí odkaz:
http://arxiv.org/abs/2209.01550
Publikováno v:
ApJ, 927, 67 (2022)
This paper is the fourth in a series presenting (galaxy morphology, and thus galaxy formation)-dependent black hole mass, $M_{\rm BH}$, scaling relations. We have used a sample of 119 galaxies with directly-measured $M_{\rm BH}$ and host spheroid par
Externí odkaz:
http://arxiv.org/abs/2110.05037
Publikováno v:
2020ApJ...903...97S
For 123 local galaxies with directly-measured black hole masses ($M_{\rm BH}$), we provide the host spheroid's S\'ersic index ($\rm n_{sph}$), effective half-light radius ($\rm R_{e,sph}$), and effective surface brightness ($\mu_e$), obtained from ca
Externí odkaz:
http://arxiv.org/abs/2101.04895
Publikováno v:
2019ApJ...887...10S
Using 145 early- and late-type galaxies (ETGs and LTGs) with directly-measured super-massive black hole masses, $M_{BH}$, we build upon our previous discoveries that: (i) LTGs, most of which have been alleged to contain a pseudobulge, follow the rela
Externí odkaz:
http://arxiv.org/abs/1908.06838
Publikováno v:
ApJ, 876, 155 (2019)
Analyzing a sample of 84 early-type galaxies with directly-measured super-massive black hole masses---nearly doubling the sample size of such galaxies with multi-component decompositions---a symmetric linear regression on the reduced (merger-free) sa
Externí odkaz:
http://arxiv.org/abs/1903.04738