cepheid instability strip造句

例句与造句

1. Throughout their lifetime Delta Scuti stars exhibit pulsation when they are situated on the classical Cepheid instability strip.
2. 14 Persei has been calculated to lie within the Cepheid instability strip although it is not considered to be variable.
3. They are crossing the Cepheid instability strip as they lose their outer layers on the way to becoming a planetary nebula.
4. The supergiants continue to cool and most will rapidly pass through the Cepheid instability strip, although the most massive will spend a brief period as yellow hypergiants.
5. The primary is expected to have lost around since it was on the main sequence, and has expanded and cooled so it lies at the blue edge of the Cepheid instability strip.
6. It's difficult to find cepheid instability strip in a sentence. 用cepheid instability strip造句挺难的
7. This was originally thought to be due to secular redward evolution across the Cepheid instability strip, but it may be due to interference between the primary and the first-overtone pulsation modes.
8. No LBVs are observed just below the luminosity where the bistability jump crosses the Cepheid instability strip ), but it is theorised that they do exist and appear as yellow hypergiants because of their pseudo-photospheres.