Oscillator, electronic device, and vehicle

An oscillator comprising:

• a first container that includes a first base substrate and a first lid bonded to the first base substrate and that has a first internal space;
• a second container that is fixed to the first base substrate in the first internal space and that includes a second base substrate and a second lid bonded to one main surface of the second base substrate and has a second internal space;
• a resonator element that is disposed on the one main surface of the second base substrate in the second internal space;
• a temperature sensor that is disposed on the other main surface of the second base sub state;
• a first circuit element that is disposed on the other main surface of the second base substrate and that includes an oscillation circuit oscillating the resonator element and generating an oscillation signal on which temperature compensation is performed based on a detected temperature of the temperature sensor;
• a second circuit element that is fixed to the first base substrate in the first internal space and that includes a frequency control circuit that controls a frequency of the oscillation signal;
• and
• a first bypass capacitor and a second bypass capacitor that are accommodated in the first container and are fixed to the first base substrate, wherein
• the second container and the second circuit element are arranged side by side in plan view,
• one end of the first bypass capacitor and one end of the second bypass capacitor are disposed to face each other, and
• end portions on facing sides of the first bypass capacitor and the second bypass capacitor have the same potential.