Star formation activity and the spatial distribution and mass segregation of dense cores in the early phases of star formation

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Volume 629 (September 2019)

A&A, 629 (2019) A135

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Table 1.

Structure parameters and mass segregation levels for the studied star forming regions.

Region	Σ_SFR	𝒬			𝒬
	(M_⊙ Myr⁻¹ pc⁻²)	(all)	(all)	(all)	(bound)	(bound)	(bound)
Taurus ^(a)	0.14	0.50	No segregation	No segregation	0.40	No segregation	No segregation
Aquila	1.8	0.61	3.75 (6) ^(c)	2.53 (6)	0.53	3.47 (6)	2.36 (6)
Corona Australis	3.43	0.46	8.80 (10)	12.18 (10)	0.59	5.68 (11)	6.15 (10)
W43	1043	0.69	3.49 (14)	2.74 (14)	0.69 ^(b)	3.49 ^(b) (14)	2.74 ^(b) (14)

Notes. The columns refer to: (1) name of the star forming region; (2) surface density of star formation; (3)–(5) 𝒬 parameter, , and for the total core population (i.e., label all), and (6)–(8) 𝒬 parameter, , and for the bound cores population (i.e., label bound).

^(a)

Only the region L1495 of Taurus is considered in this work.

^(b)

This is only valid under the assumption that all cores detected in W43 are gravitationally bound.

^(c)

The numbers between parentheses represent the number of most massive cores that are the most mass segregated; i.e., positions at which there is a peak in the Λ_MSR (or Γ_MSR)–n_MST relation.

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