[論文レビュー] How large spectroscopic surveys are shaping our understanding of massive stars

S. Simón-Díaz|arXiv (Cornell University)|Jan 29, 2026

Astronomy and Astrophysical Research被引用数 0

ひとこと要約

The paper provides a broad overview of major spectroscopic surveys of massive stars, outlining their key characteristics, scientific goals, and the transformative impact on theories of massive-star evolution, including the pivotal role of binarity and rotation.

ABSTRACT

We present an overview of the main characteristics of several spectroscopic surveys designed to advance our understanding of the physical properties and evolution of massive stars. We also summarize key results obtained from the analysis of these datasets, highlighting how the interpretation of some observables in the framework of massive-star evolution is considerably more complex than previously anticipated.

研究の動機と目的

• Identify the main scientific questions driving large spectroscopic surveys of massive stars.
• Summarize the characteristics and scope of past and ongoing surveys across the Milky Way and Magellanic Clouds.
• Explain how survey data have challenged and refined models of rotation, winds, and binary interaction in massive stars.
• Highlight methodological and collaborative factors that contribute to the success and scientific legacy of surveys.

提案手法

• Survey synthesis of historical and contemporary programs (e.g., GOSSS, OWN, IACOB, MiMeS, VFSMS, VFTS, TMBM, BBC, RIOTS4, GES).
• Discussion of target selection, observational strategies, data analysis, and multi-epoch/multi-object approaches.
• Emphasis on automated and Bayesian/semi-automated spectroscopic analysis to extract stellar parameters and abundances from large datasets.
• Integration of observational results with evolving stellar-atmosphere and evolution models to test predictions (winds, rotation, binarity).
• Consideration of observational biases and the need for complementary diagnostics (time-domain photometry, high-angular-resolution imaging).

実験結果

リサーチクエスチョン

• RQ1 How have large spectroscopic surveys altered our understanding of the physical properties and evolution of massive stars?
• RQ2 What role do binarity, rotation, and winds play in shaping massive-star evolution across different metallicities?
• RQ3 What are the methodological requirements (target selection, cadence, data analysis) for successful large-scale surveys of massive stars?
• RQ4 To what extent do observational results align with or challenge current stellar-evolution models?

主な発見

• Large surveys have challenged the simple paradigm of massive-star evolution, highlighting the interplay of mass, rotation, winds, and binary interaction.
• Binary interaction is a dominant factor in massive-star evolution, with surveys like VFTS showing high binary/multiple incidence in 30 Doradus.
• Observational results reveal complex behavior in surface abundances and rotational properties that static single-star models cannot fully explain.
• Automated and Bayesian spectroscopic analyses are essential to handle the volume and complexity of multi-epoch, multi-object data.
• Acknowledgement of observational biases and the need to disentangle genuine single-star products from binary-interaction products (BIPs).
• Future large surveys (LEGUE, SDSS-V MWM, WEAVE-SCIP, 4MIDABLE-LR, 1001MC) are expected to dramatically expand the census of massive stars and enable transformative advances.