Engineering Papers⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 3012002

DESI EDR: Calibrating the Tully–Fisher Relationship with the DESI Peculiar Velocity Survey

Douglass, Kelly [Univ. of Rochester, NY (United States); DESI Collaboration. et al.] (ORCID:000000029540546X)·BenZvi, S. (ORCID:0000000155374710)·Uberoi, N. (ORCID:0000000275179629)·Howlett, C. (ORCID:0000000210819410)·Saulder, C. (ORCID:0000000204085633)·Said, K. (ORCID:0000000218096325)·Demina, R. (ORCID:000000027852167X)·Aguilar, J. (ORCID:000000030822452X)·Ahlen, S. (ORCID:0000000160987247)·Aldering, G.·Bianchi, D. (ORCID:0000000197120006)·Brooks, D. (ORCID:0000000284585047)·Claybaugh, T. (ORCID:0000000250246987)·Cuceu, A. (ORCID:0000000221690595)·Davis, T. M. (ORCID:0000000242138783)·Dawson, K. S. (ORCID:0000000205533805)·de la Macorra, A. (ORCID:0000000217691640)·Font-Ribera, A. (ORCID:0000000230337312)·Forero-Romero, J. E. (ORCID:0000000228903725)·Gaztañaga, E. (ORCID:0000000196320815)·Gontcho A Gontcho, S. (ORCID:000000033142233X)·Gutierrez, G. (ORCID:0000000308250517)·Hahn, C. (ORCID:0000000311970902)·Honscheid, K. (ORCID:0000000265502023)·Ishak, M. (ORCID:000000026024466X)·Joyce, R. (ORCID:0000000302015241)·Kisner, T. (ORCID:0000000335107134)·Kremin, A. (ORCID:0000000163567424)·Landriau, M. (ORCID:0000000318388528)·Levi, M. E. (ORCID:0000000318871018)·Lucey, J. (ORCID:000000029748961X)·Martini, P. (ORCID:0000000242794182)·Meisner, A. (ORCID:0000000211257384)·Miquel, R. (ORCID:0000000266104836)·Moustakas, J. (ORCID:0000000227334559)·Palanque-Delabrouille, N. (ORCID:000000033188784X)·Percival, W. J. (ORCID:0000000206445727)·Prada, F. (ORCID:0000000171458674)·Rossi, G.·Sanchez, E. (ORCID:0000000296468198)·Schlegel, D. (ORCID:0000000250425088)·Schubnell, M. (ORCID:0000000195042059)·Silber, J. (ORCID:0000000234610320)·Sprayberry, D. (ORCID:0000000175836441)·Tarlé, G. (ORCID:0000000317040781)·Weaver, B. A.·Zhou, R. (ORCID:0000000153814372)·Zou, H. (ORCID:0000000266843997)
View original source ↗Read source document ↗Export metadata ↓

Abstract

We calibrate the Tully–Fisher relation (TFR) with data from the DESI Peculiar Velocity (PV) Survey taken during the Survey Validation (SV) period of the DESI galaxy redshift survey. Placing spectroscopic fibers on the centers and major axes of spatially extended spiral galaxies identified in the 2020 Siena Galaxy Atlas using the DESI Legacy Surveys, we measure the rotational velocities at 0.33R 26 for 1155 (1128 + 27 dwarf) spiral galaxies observed during SV. Using 39 spiral galaxies observed in the Coma cluster, we find a slope for the TFR of −8.32 ± 0.15 AB mag in the r band, with a scatter about the TFR of 1.12 ± 0.03 AB mag. We calibrate the zero-point of the TFR using galaxies with independent distances measured using type Ia supernovae (SNe Ia) via the cosmological distance ladder. From the SN Ia distances, we measure a zero-point of $-19.21^{+0.30}_{-0.31}$ AB mag in the r band. We produce a public catalog of the distances to these 1128 spiral galaxies observed during DESI SV as part of the DESI PV Survey with our calibrated TFR. This is, to our knowledge, the first catalog of TFR distances produced with velocities measured at a single point in the disk.

Explore related subjects

79 ASTRONOMY AND ASTROPHYSICS

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Douglass, Kelly [Univ. of Rochester, NY (United States); DESI Collaboration. et al.] (ORCID:000000029540546X), BenZvi, S. (ORCID:0000000155374710), Uberoi, N. (ORCID:0000000275179629), Howlett, C. (ORCID:0000000210819410), Saulder, C. (ORCID:0000000204085633), Said, K. (ORCID:0000000218096325), Demina, R. (ORCID:000000027852167X), Aguilar, J. (ORCID:000000030822452X), Ahlen, S. (ORCID:0000000160987247), Aldering, G., Bianchi, D. (ORCID:0000000197120006), Brooks, D. (ORCID:0000000284585047), Claybaugh, T. (ORCID:0000000250246987), Cuceu, A. (ORCID:0000000221690595), Davis, T. M. (ORCID:0000000242138783), Dawson, K. S. (ORCID:0000000205533805), de la Macorra, A. (ORCID:0000000217691640), Font-Ribera, A. (ORCID:0000000230337312), Forero-Romero, J. E. (ORCID:0000000228903725), Gaztañaga, E. (ORCID:0000000196320815), Gontcho A Gontcho, S. (ORCID:000000033142233X), Gutierrez, G. (ORCID:0000000308250517), Hahn, C. (ORCID:0000000311970902), Honscheid, K. (ORCID:0000000265502023), Ishak, M. (ORCID:000000026024466X), Joyce, R. (ORCID:0000000302015241), Kisner, T. (ORCID:0000000335107134), Kremin, A. (ORCID:0000000163567424), Landriau, M. (ORCID:0000000318388528), Levi, M. E. (ORCID:0000000318871018), Lucey, J. (ORCID:000000029748961X), Martini, P. (ORCID:0000000242794182), Meisner, A. (ORCID:0000000211257384), Miquel, R. (ORCID:0000000266104836), Moustakas, J. (ORCID:0000000227334559), Palanque-Delabrouille, N. (ORCID:000000033188784X), Percival, W. J. (ORCID:0000000206445727), Prada, F. (ORCID:0000000171458674), Rossi, G., Sanchez, E. (ORCID:0000000296468198), Schlegel, D. (ORCID:0000000250425088), Schubnell, M. (ORCID:0000000195042059), Silber, J. (ORCID:0000000234610320), Sprayberry, D. (ORCID:0000000175836441), Tarlé, G. (ORCID:0000000317040781), Weaver, B. A., Zhou, R. (ORCID:0000000153814372), Zou, H. (ORCID:0000000266843997). 2026-04-02. DESI EDR: Calibrating the Tully–Fisher Relationship with the DESI Peculiar Velocity Survey. https://doi.org/10.3847/1538-4357%2Fae517b

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

DOE OSTI2026

Dust Survival in Galactic Winds

This repository contains three-dimensional volumetric data from an Eulerian hydrodynamical simulation (conducted on a uniform Cartesian grid) generated by the Cholla hydrodynamics code. The datasets contain snapshots (full-grid, projections, and slices) in the HDF5 format of a multi-phase medium in which a hot, diffuse, dust-free background wind accelerates a cool, dense cloud of gas and dust. This scenario is intended to represent a supernova-driven galactic outflow, in which hot supernova winds are thought to accelerate cool interstellar medium material out of the galactic disk into the surrounding circumgalactic medium. There are three separate datasets for simulations corresponding to three cloud evolutionary scenarios: long-term cloud survival (surv), marginal cloud survival (disr), and cloud destruction (dest). Projection and slice images of the simulations are also included in this repository.

79 ASTRONOMY AND ASTROPHYSICS↗
DOE OSTI2026

Unraveling TeV halos with the Cherenkov Telescope Array

Pulsars are observed to emit bright and spatially extended gamma-ray emission at multi-TeV energies. These so-called "TeV halos" are now understood to be a nearly universal feature of middle-aged pulsars. However, many of the key physical processes that govern these systems, particularly those affecting particle diffusion, remain poorly constrained. We aim to evaluate the ability of the Cherenkov Telescope Array (CTA) to probe the physical properties of TeV halos, with a focus on the nearby and well-studied case of the Geminga pulsar. We simulate gamma-ray emission from various TeV halo models, incorporating different assumptions for the injected electron spectrum, spin-down evolution, and energy-dependent diffusion. These models are then used to forecast CTA's sensitivity to spectral and spatial differences, based on realistic mock observations and instrument response simulations. We find that CTA will be able to distinguish between a wide range of TeV halo models that are currently consistent with existing data. In particular, CTA observations can constrain the normalization, energy dependence, and spatial extent of the diffusion coefficient surrounding Geminga, as well as the spectral shape of the injected electron population.

79 ASTRONOMY AND ASTROPHYSICS↗