The puzzle of isolated and quenched dwarf galaxies in cosmic voids

Bahar Bidaran; Isabel Pérez; Laura Sánchez-Menguiano; María Argudo-Fernández; Anna Ferré-Mateu; Julio F. Navarro; Reynier F. Peletier; Tomás Ruiz-Lara; Glenn van de Ven; Simon Verley; Almudena Zurita; Salvador Duarte Puertas; Jesús Falcón-Barroso; Patricia Sánchez-Blázquez; Andoni Jiménez

doi:10.1051/0004-6361/202452688

The puzzle of isolated and quenched dwarf galaxies in cosmic voids

Bahar Bidaran (Korresp. Autor*in)
, Isabel Pérez
, Laura Sánchez-Menguiano
, María Argudo-Fernández
, Anna Ferré-Mateu
, Julio F. Navarro
, Reynier F. Peletier
, Tomás Ruiz-Lara
, Glenn van de Ven
, Simon Verley
, Almudena Zurita
, Salvador Duarte Puertas
, Jesús Falcón-Barroso
, Patricia Sánchez-Blázquez
, Andoni Jiménez

Institut für Astrophysik

Veröffentlichungen: Beitrag in Fachzeitschrift › Artikel › Peer Reviewed

Abstract

We report, for the first time, the detection of a sample of quenched and isolated dwarf galaxies (with 8.9 < log(M _∗/M _O) < 9.5) in the least dense regions of the cosmic web, including voids, filaments, and walls. These dwarfs have no neighboring galaxy within 1.0 Mpc in projected distance. Based on the full spectral fitting of their central spectra using Sloan Digital Sky Survey data, these galaxies are gas-deprived, while also exhibiting a stellar mass assembly very similar to dwarfs in the central regions of galaxy clusters. Furthermore, they have experienced no significant star formation in the past 2 Gyr. Additionally, analyses of r-band images from the Dark Energy Camera Legacy Survey have shown that these dwarf galaxies host a central nuclear star cluster (NSC). Detecting quenched, isolated dwarf galaxies in cosmic voids indicates that environmental factors are not the sole drivers of their quenching. Internal mechanisms, such as feedback from in situ star formation, which also contribute to the NSC formation, along with black holes or variations in the conditions around their formation, offer potential explanations for star formation suppression in these galaxies. These findings highlight the need for a significant revision in our understanding of baryonic physics, particularly concerning the formation and evolution of low-mass galaxies.

Originalsprache	Englisch
Aufsatznummer	L16
Seitenumfang	8
Fachzeitschrift	Astronomy & Astrophysics
Jahrgang	693
DOIs	https://doi.org/10.1051/0004-6361/202452688
Publikationsstatus	Veröffentlicht - 1 Jan. 2025

Fördermittel

BB and IP acknowledges financial support from the Grant AST22-4.4, funded by Consejería de Universidad, Investigación e Innovación and Gobierno de España and Unión Europea – NextGenerationEU, and by the research projects PID2020-113689GB-I00 and PID2023-149578NB-I00 financed by MCIN/AEI/10.13039/501100011033. IP acknowledges financial support by the grant FQM108, financed by the Junta de Andalucía (Spain). LSM acknowledges support from Juan de la Cierva fellowship (IJC2019-041527-I). M.A-F. acknowledges support from ANID FONDECYT iniciación project 11200107 and the Emergia program (EMERGIA20_38888) from Consejería de Universidad, Investigación e Innovación de la Junta de Andalucía. AFM has received support from RYC2021-031099-I and PID2021-123313NA-I00 of MICIN/AEI/10.13039/501100011033/FEDER,UE, NextGenerationEU/PRT. TRL acknowledges support from Juan de la Cierva fellowship (IJC2020-043742-I). SDP acknowledges financial support from Juan de la Cierva Formación fellowship (FJC2021-047523-I) financed by MCIN/AEI/10.13039/501100011033 and by the European Union ‘NextGenerationEU’/PRTR, Ministerio de Economía y Competitividad under grants PID2019-107408GB-C44, PID2022-136598NB-C32, and is grateful to the Natural Sciences and Engineering Research Council of Canada, the Fonds de Recherche du Québec, and the Canada Foundation for Innovation for funding. JF-B acknowledges support from the PID2022-140869NB-I00 grant from the Spanish Ministry of Science and Innovation. BB and IP acknowledges financial support from the Grant AST22-4.4, funded by Consejería de Universidad, Investigación e Innovación and Gobierno de España and Unión Europea - NextGenerationEU, and by the research projects PID2020-113689GB-I00 and PID2023- 149578NB-I00 financed by MCIN/AEI/10.13039/501100011033. IP acknowledges financial support by the grant FQM108, financed by the Junta de Andalucía (Spain). LSM acknowledges support from Juan de la Cierva fellowship (IJC2019-041527-I). M.A-F. acknowledges support from ANID FONDECYT iniciación project 11200107 and the Emergia program (EMERGIA20_ 38888) from Consejería de Universidad, Investigación e Innovación de la Junta de Andalucía. AFM has received support from RYC2021-031099-I and PID2021-123313NA-I00 of MICIN/AEI/10.13039/501100011033/FEDER,UE, NextGenerationEU/PRT. TRL acknowledges support from Juan de la Cierva fellowship (IJC2020-043742-I). SDP acknowledges financial support from Juan de la Cierva Formación fellowship (FJC2021-047523-I) financed by MCIN/AEI/10.13039/501100011033 and by the European Union 'NextGenerationEU' /PRTR, Ministerio de Economía y Competitividad under grants PID2019-107408GB-C44, PID2022-136598NB-C32, and is grateful to the Natural Sciences and Engineering Research Council of Canada, the Fonds de Recherche du Québec, and the Canada Foundation for Innovation for funding. JF-B acknowledges support from the PID2022-140869NB-I00 grant from the Spanish Ministry of Science and Innovation.

ÖFOS 2012

103003 Astronomie
103004 Astrophysik

Zugriff auf Dokument

10.1051/0004-6361/202452688Lizenz: CC BY 4.0

http://adsabs.harvard.edu/abs/2025arXiv250102910B

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Zitationsweisen

Bidaran, B., Pérez, I., Sánchez-Menguiano, L., Argudo-Fernández, M., Ferré-Mateu, A., Navarro, J. F., Peletier, R. F., Ruiz-Lara, T., van de Ven, G., Verley, S., Zurita, A., Duarte Puertas, S., Falcón-Barroso, J., Sánchez-Blázquez, P., & Jiménez, A. (2025). The puzzle of isolated and quenched dwarf galaxies in cosmic voids. Astronomy & Astrophysics, 693, Artikel L16. https://doi.org/10.1051/0004-6361/202452688

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title = "The puzzle of isolated and quenched dwarf galaxies in cosmic voids",

abstract = "We report, for the first time, the detection of a sample of quenched and isolated dwarf galaxies (with 8.9 < log(M ∗/M O) < 9.5) in the least dense regions of the cosmic web, including voids, filaments, and walls. These dwarfs have no neighboring galaxy within 1.0 Mpc in projected distance. Based on the full spectral fitting of their central spectra using Sloan Digital Sky Survey data, these galaxies are gas-deprived, while also exhibiting a stellar mass assembly very similar to dwarfs in the central regions of galaxy clusters. Furthermore, they have experienced no significant star formation in the past 2 Gyr. Additionally, analyses of r-band images from the Dark Energy Camera Legacy Survey have shown that these dwarf galaxies host a central nuclear star cluster (NSC). Detecting quenched, isolated dwarf galaxies in cosmic voids indicates that environmental factors are not the sole drivers of their quenching. Internal mechanisms, such as feedback from in situ star formation, which also contribute to the NSC formation, along with black holes or variations in the conditions around their formation, offer potential explanations for star formation suppression in these galaxies. These findings highlight the need for a significant revision in our understanding of baryonic physics, particularly concerning the formation and evolution of low-mass galaxies.",

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Bidaran, B, Pérez, I, Sánchez-Menguiano, L, Argudo-Fernández, M, Ferré-Mateu, A, Navarro, JF, Peletier, RF, Ruiz-Lara, T, van de Ven, G, Verley, S, Zurita, A, Duarte Puertas, S, Falcón-Barroso, J, Sánchez-Blázquez, P & Jiménez, A 2025, 'The puzzle of isolated and quenched dwarf galaxies in cosmic voids', Astronomy & Astrophysics, Jg. 693, L16. https://doi.org/10.1051/0004-6361/202452688

TY - JOUR

T1 - The puzzle of isolated and quenched dwarf galaxies in cosmic voids

AU - Bidaran, Bahar

AU - Pérez, Isabel

AU - Sánchez-Menguiano, Laura

AU - Argudo-Fernández, María

AU - Ferré-Mateu, Anna

AU - Navarro, Julio F.

AU - Peletier, Reynier F.

AU - Ruiz-Lara, Tomás

AU - van de Ven, Glenn

AU - Verley, Simon

AU - Zurita, Almudena

AU - Duarte Puertas, Salvador

AU - Falcón-Barroso, Jesús

AU - Sánchez-Blázquez, Patricia

AU - Jiménez, Andoni

PY - 2025/1/1

Y1 - 2025/1/1

N2 - We report, for the first time, the detection of a sample of quenched and isolated dwarf galaxies (with 8.9 < log(M ∗/M O) < 9.5) in the least dense regions of the cosmic web, including voids, filaments, and walls. These dwarfs have no neighboring galaxy within 1.0 Mpc in projected distance. Based on the full spectral fitting of their central spectra using Sloan Digital Sky Survey data, these galaxies are gas-deprived, while also exhibiting a stellar mass assembly very similar to dwarfs in the central regions of galaxy clusters. Furthermore, they have experienced no significant star formation in the past 2 Gyr. Additionally, analyses of r-band images from the Dark Energy Camera Legacy Survey have shown that these dwarf galaxies host a central nuclear star cluster (NSC). Detecting quenched, isolated dwarf galaxies in cosmic voids indicates that environmental factors are not the sole drivers of their quenching. Internal mechanisms, such as feedback from in situ star formation, which also contribute to the NSC formation, along with black holes or variations in the conditions around their formation, offer potential explanations for star formation suppression in these galaxies. These findings highlight the need for a significant revision in our understanding of baryonic physics, particularly concerning the formation and evolution of low-mass galaxies.

AB - We report, for the first time, the detection of a sample of quenched and isolated dwarf galaxies (with 8.9 < log(M ∗/M O) < 9.5) in the least dense regions of the cosmic web, including voids, filaments, and walls. These dwarfs have no neighboring galaxy within 1.0 Mpc in projected distance. Based on the full spectral fitting of their central spectra using Sloan Digital Sky Survey data, these galaxies are gas-deprived, while also exhibiting a stellar mass assembly very similar to dwarfs in the central regions of galaxy clusters. Furthermore, they have experienced no significant star formation in the past 2 Gyr. Additionally, analyses of r-band images from the Dark Energy Camera Legacy Survey have shown that these dwarf galaxies host a central nuclear star cluster (NSC). Detecting quenched, isolated dwarf galaxies in cosmic voids indicates that environmental factors are not the sole drivers of their quenching. Internal mechanisms, such as feedback from in situ star formation, which also contribute to the NSC formation, along with black holes or variations in the conditions around their formation, offer potential explanations for star formation suppression in these galaxies. These findings highlight the need for a significant revision in our understanding of baryonic physics, particularly concerning the formation and evolution of low-mass galaxies.

KW - Astrophysics - Astrophysics of Galaxies

KW - Galaxies: evolution

KW - Galaxies: star formation

KW - Large-scale structure of Universe

KW - Galaxies: dwarf

UR - https://www.scopus.com/pages/publications/85218153472

U2 - 10.1051/0004-6361/202452688

DO - 10.1051/0004-6361/202452688

M3 - Article

SN - 0004-6361

VL - 693

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - L16

ER -

The puzzle of isolated and quenched dwarf galaxies in cosmic voids

Abstract

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ÖFOS 2012

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