Cold gas in a complete sample of group-dominant early-type galaxies

Free Access

Table 2.

Molecular data and stellar mass of the newly detected galaxies.

Galaxy	Line	I_CO K km s⁻¹	V km s⁻¹	Δ V^a km s⁻¹	T_mb^b mK	K km s⁻¹ pc²	M(H₂)^c 10⁸ M_⊙
IRAM 30 m observations
NGC 924	CO(1-0)	<0.49	–	300	1.34 rms	<0.24	<1.11
	CO(2-1)	0.92 ± 0.18	−44.3 ± 33.4	363.1 ± 86.6	2.4 ± 0.8	0.11 ± 0.02	0.52 ± 0.10
NGC 4169	CO(1-0)	0.81 ± 0.19	−75.2 ± 51.3	399.6 ± 98.8	1.9 ± 0.9	0.31 ± 0.07	1.44 ± 0.34
	CO(2-1)	0.95 ± 0.17	52.9 ± 32.6	353.7 ± 75.3	2.5 ± 0.5	0.09 ± 0.02	0.42 ± 0.08
NGC 5353	CO(1-0)	2.71 ± 0.36	−32.7 ± 44.9	655.4 ± 94.6	3.9 ± 1.3	0.41 ± 0.06	1.90 ± 0.25
	CO(2-1)	7.61 ± 0.43	−87.8 ± 20.9	700.1 ± 40.7	10.2 ± 1.6	0.29 ± 0.02	1.33 ± 0.08
NGC 5354	CO(1-0)	−0.90 ± 0.18	−132.8 ± 4.6	45.0 ± 11.0	−18.9 ± 2.9	−0.14 ± 0.03	–
	CO(2-1)	−0.71 ± 0.15	−84.7 ± 5.6	49.7 ± 12.7	−13.5 ± 0.5	−0.03 ± 0.01	–
NGC 128-HI^d	CO(1-0)	0.92 ± 0.10	−218.9 ± 7.1	134.6 ± 16.0	6.5 ± 0.8	0.38 ± 0.04	1.76 ± 0.18
	CO(2-1)	0.43 ± 0.13	−197.1 ± 19.0	118.7 ± 29.8	3.4 ± 0.7	0.04 ± 0.01	0.20 ± 0.06
NGC 252	CO(1-0)	2.21 ± 0.28	110.4 ± 14.6	239.0 ± 34.7	8.7 ± 1.3	1.37 ± 0.17	6.29 ± 0.79
	CO(2-1)	<0.75	–	300	2.03 rms	<0.11	<0.53
NGC 1106	CO(1-0)	3.07 ± 0.15	−133.3 ± 2.8	250.8 ± 17.6	21.2 ± 0.8	1.48 ± 0.07	6.81 ± 0.33
	CO(2-1)	2.34 ± 0.22	−134.7 ± 13.2	252.6 ± 29.7	8.7 ± 1.3	0.28 ± 0.03	1.30 ± 0.12
NGC 2911	CO(1-0)	2.27 ± 0.26	18.5 ± 27.6	455.2 ± 50.4	4.7 ± 1.3	0.58 ± 0.07	2.66 ± 0.31
	CO(2-1)	6.00 ± 0.42	44.5 ± 20.2	563.0 ± 41.1	10.0 ± 1.9	0.38 ± 0.03	1.75 ± 0.12
NGC 4636	CO(1-0)	<0.22	–	300	0.61 rms	<0.005	<0.023
	CO(2-1)	0.38 ± 0.12	88.6 ± 56.7	304.5 ± 98.7	1.2 ± 0.6	0.002 ± 0.001	0.010 ± 0.003
NGC 5846	CO(1-0)	0.46 ± 0.20	−80.1 ± 134.3	581.8 ± 377.1	0.7 ± 0.6	0.03 ± 0.01	0.14 ± 0.06
	CO(2-1)	0.47 ± 0.14	−75.9 ± 51.3	334.9 ± 91.9	1.3 ± 0.7	0.008 ± 0.002	0.04 ± 0.01
APEX observations
ESO 507-25	CO(2-1)	1.91 ± 0.25	18.0 ± 33.0	472.0 ± 65.0	2.4 ± 0.9	0.92 ± 0.12	4.23 ± 0.56
NGC 1779	CO(2-1)	2.13 ± 0.28	22.0 ± 29.0	434.0 ± 55.0	4.7 ± 1.1	0.99 ± 0.13	4.57 ± 0.60
NGC 7377	CO(2-1)	2.00 ± 0.19	−33.0 ± 10.0	221.0 ± 20.0	8.9 ± 1.5	1.03 ± 0.10	4.74 ± 0.44

Notes. Results of the Gaussian fits. For each object observed with the IRAM 30 m, the first line displays the CO(1-0) and the second line the CO(2-1) results.

^(a)

FWHM.

^(b)

Peak brightness temperature.

^(c)

Obtained with the standard MW conversion ratio. In the two cases where only one transition was detected, the table shows the rms T_mb for 50 km s⁻¹ channels and 3σ upper limits on other parameters, assuming Δ V of 300 km s⁻¹.

^(d)

Detected values for the NGC 128 offset pointing in the H I bridge.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.