Tootfinder

Era uma vez um blogue sobre literatura fantšstica relacionada com o Algarve que estava alojado nos blogues do Sapo.
O endereço era (e contunuarš a ser, durante algum tempo) https://fantasticoalgarve.blogs.sapo.pt/
Pois bem, agora estš no Wordpress, em

Eu estava lendo agora hš pouco sobre mitologia hindu na wikipedia. O assunto é fascinante, mas é muito confuso. Os deuses e entidades têm všrias manifestações, cada uma com diferentes formas e nomes (nomes esses ališs, bem esquisitos e difíceis de diferenciar). No fim, eu sempre saio dessas leituras com a impressão de estar entendendo menos do assunto do que antes da leitura kkkk.
Não adianta, pra mim tem que ser essas versões muito ocidentalizadas. Como as do William Buck.

Fiz mais um pouco de café e vou tentar focar no trabalho aqui agora.
Ališs, acho que eu fui a única pessoa que gostou deste café sabor pistache que a Dolce Gusto lançou, né? rs

Vz-GAL Dusty Star-Forming Galaxies: Revisiting the CO-H2 Conversion Factor Tension
Prachi Prajapati, Axel Weiss, Dominik Riechers, Tom J. L. C. Bakx, Leindert A. Boogaard, Diana Ismail, Pierre Cox, Andrew J. Baker, Roberto Neri, Matthew Lehnert, Chentao Yang, Emilio Romano-Diaz, Hiddo S. B. Algera, Stefano Berta, Edoardo Borsato, Kirsty M. Butler, Asantha Cooray, Bethany Jones, Amelie Saintonge, Paul van der Werf
https://arxiv.org/abs/2607.18440 https://arxiv.org/pdf/2607.18440 https://arxiv.org/html/2607.18440
arXiv:2607.18440v1 Announce Type: new
Abstract: The CO luminosity-to-H$_2$ mass conversion factor ($\alpha_{CO}$) remains a debated uncertainty in determining molecular gas masses of high-redshift dusty star-forming galaxies (DSFGs). Dynamical mass constraints have often favored $\alpha_{CO}=0.8$~$M_{\odot}~{(K~km~{s}^{-1}~{pc}^{2})}^{-1}$, whereas dust- and radiative-transfer-based methods imply higher values. We revisit this ``tension" using the largest homogeneous sample of 21 unlensed $z\sim1-4$ DSFGs, with securely measured \coonezero luminosities from the VLA \vzgal survey and resolved ($\sim{0.1}^{\prime\prime}$) ALMA 1~mm dust continuum imaging. For 12 galaxies with robust modeling constraints, we derive molecular gas masses using dust spectral energy distribution modeling and the TUNER LVG framework, adopting a solar-metallicity gas-to-dust mass ratio of 100. Although not fully independent due to shared assumptions on dust properties, these approaches yield mutually consistent gas masses corresponding to $\alpha_{CO}\sim1.5-11.5$, with a median near the Galactic $\alpha_{CO}=4.3$. Isotropic virial dynamical masses agree with these gas masses when realistic molecular gas sizes are adopted, while our proposed ``mixed" (rotating, pressure-supported, thick-disk) estimator systematically underestimates dynamical masses, producing low $\alpha_{CO}$ limits. Using GN20 ($z=4.055$) as a case study, we show that resolved gas geometry and kinematics reconcile the discrepancy with LVG-derived $\alpha_{CO}$. Our results suggest that current data do not require $\alpha_{CO}=0.8$, and intermediate to near-Galactic values remain dynamically viable given uncertainties in gas geometry, dust properties, and gas-to-dust ratios. Further progress in calibrating $\alpha_{CO}$ in the early universe will require resolved molecular gas observations, physically motivated ISM modeling, and stringent constraints on dust properties.
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Antoine Reicha, Munich Radio Orchestra & Valentin Egel:
🎵 Symphony in D Major, AJR I:17: III. Menuetto. Allegro vivace
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https://open.spotify.com/track/1akC0W2XLdbpFtXGpBmU55