The rise and fall of little red dots could be driven by the environment

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Table 3.

Best-fitting parameters from Bagpipes (spectrum and photometry) and Dense Basis (photometry only).

ID	log M_★/M_⊙	log SFR [M_⊙/yr]	A_v [mag]	log M_★/M_⊙	log SFR [M_⊙/yr]	A_v [mag]	L_Hα	L_Hβ	L_[OIII]λ4959	L_[OIII]λ5007

	`Bagpipes`			`Dense Basis`			[10⁴¹ erg/s]
tLRD	9.08 $_{9.03}^{9.14}$ $Mathematical equation: $ _{9.03}^{9.14} $$	1.09 $_{1.04}^{1.15}$ $Mathematical equation: $ _{1.04}^{1.15} $$	0.72 $_{0.63}^{0.80}$ $Mathematical equation: $ _{0.63}^{0.80} $$	9.25 $_{9.25}^{9.25}$ $Mathematical equation: $ _{9.25}^{9.25} $$	1.14 $_{1.16}^{1.17}$ $Mathematical equation: $ _{1.16}^{1.17} $$	0.82 $_{0.82}^{0.83}$ $Mathematical equation: $ _{0.82}^{0.83} $$	82.78 ± 1.86	7.93 ± 0.85	13.20 ± 0.85	41.47 ± 1.32
							B:54.52 ± 1.69
							N:28.26 ± 1.07

BBG	9.02 $_{8.95}^{9.09}$ $Mathematical equation: $ _{8.95}^{9.09} $$	0.73 $_{0.61}^{0.83}$ $Mathematical equation: $ _{0.61}^{0.83} $$	0.28 $_{0.14}^{0.40}$ $Mathematical equation: $ _{0.14}^{0.40} $$	9.10 $_{8.94}^{9.22}$ $Mathematical equation: $ _{8.94}^{9.22} $$	0.52 $_{0.45}^{0.89}$ $Mathematical equation: $ _{0.45}^{0.89} $$	0.03 $_{0.02}^{0.09}$ $Mathematical equation: $ _{0.02}^{0.09} $$	8.14 ± 0.98	< 3.26	3.58 ± 0.81	9.97 ± 1.06

SAT1	7.84 $_{7.66}^{8.02}$ $Mathematical equation: $ _{7.66}^{8.02} $$	$- 0 . 27_{- 0.35}^{0.13}$ $Mathematical equation: $ -0.27_{-0.35}^{0.13} $$	0.07 $_{0.03}^{0.13}$ $Mathematical equation: $ _{0.03}^{0.13} $$	8.28 $_{8.06}^{8.60}$ $Mathematical equation: $ _{8.06}^{8.60} $$	0.10 $_{- 0.02}^{0.22}$ $Mathematical equation: $ _{-0.02}^{0.22} $$	0.11 $_{0.03}^{0.23}$ $Mathematical equation: $ _{0.03}^{0.23} $$	2.19 ± 0.36	< 1.15	1.43 ± 0.31	4.24 ± 0.40

Notes. We include the 16th and 84th percentiles as upper and lower bounds for the SED-derived properties. The star formation rates correspond to SFR₁₀₀. Dense Basis assumes that all emission originates from stars, whereas Bagpipes includes AGN emission in the fit. In column 8, B and N denote broad and narrow components, respectively. The H_α line width is 1773 km/s. The BBG and SAT1 Hβ emission line measurements are 2σ upper limits.

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